Chatfield, his arms filled with masses of dried bracken and coarse grass, turned sharply on hearing Vickers's call and stared hard and long in the direction which the young solicitor pointed out. His small, crafty eyes became dilated to their full extent—suddenly they contracted again with a look of cunning satisfaction, and throwing away his burdens he drew out a big many-coloured handkerchief and mopped his high forehead as if the perspiration which burst out were the result of intense mental relief.

"Didn't I know we should be rescued from this here imprisonment!" he cried with unctuous joy. "Thought they'd pinned me here for best part of a week, no doubt, while they could get theirselves quietly away—far away! But it's my experience 'ut them as has served the Lord's never deserted, Mr. Vickers, and if you live as long as—"

"Don't be blasphemous, Chatfield!" said Vickers, curtly. "None of that! What we'd better think about is the chance of that steamer sighting us. We'll light that fire, anyway!"

"She's coming straight on for the island," remarked Copplestone, who had been narrowly watching the approaching vessel. "So straight that you'd think she was actually making for it."

"She'll be some craft bound for Kirkwall," said Vickers, pointing northward to the main group of islands. "And in that case she'll probably take this channel on our west; that fire, now! Come on all of you, and let's make as big a smoke as we can get out of this stuff."

The weather being calm and the grass and bracken which they heaped together as dry as tinder, there was little difficulty about raising a thick column of smoke which presently rose high in the sky. But Audrey, turning away from the successful result of their labours, suddenly glanced at Copplestone with a look that challenged an answer to her own thoughts. They were standing a little apart from the others and she lowered her voice.

"I say!" she murmured. "I don't think we need have bothered ourselves to light that fire. That vessel, whatever it is, is making for us. Look!"

Copplestone shaded his eyes and stared out across the sea. The steamer was by that time no more than two or three miles away. But she was coming towards them in a dead straight line, and as she was accordingly bow on, and as her top deck and lamps were obscured by clouds of black smoke, pouring furiously from her funnels, they could make little out of her appearance. Copplestone's first notion was that she was a naval patrol boat, or a torpedo destroyer. Whatever she was it seemed certain that she was heading direct for the island, at that very point on which the fugitives had been landed the previous night. And it was very evident that she was in a great hurry to make her objective.

"I think you're right," he said, turning to Audrey. "But it's strange that any vessel should be making for an uninhabited island like this. What—but you've got some notion in your mind?" he broke off suddenly, seeing her glance at him again. "What is it?"

Audrey shook her head, with a cautious look at Chatfield.

"I was wondering if that's the Pike?—come back!" she whispered. "And if it is—why?"

Copplestone started, and took a longer and keener look at the vessel. Before he could speak again, Vickers called out cheerily across the rocks.

"Come on, you two!" he cried. "She's seen us—she's coming in. They'll have to send off a boat. Let's get down to the beach, so that they'll know where there's a safe landing."

He sprang over the edge of the cliff and hurried down the rough path; Chatfield, picking up his coat and shawl, prepared to follow him; Audrey and Copplestone lingered until he, too, had begun to lumber downward.

"If that is the Pike," said Audrey, "there is something—wrong. Whoever it is that is on the Pike wouldn't come back to take us!"

"You think there is somebody on the Pike—somebody other than Andrius?" suggested Copplestone.

"I believe the man who calls himself Marston Greyle was on the Pike," announced Audrey. "I've always thought so. Whether Chatfield knew that or not, I don't know. My own belief is that Chatfield did know. I believe Chatfield was in with them, as the saying is. I think they were all running away with as much of the Scarhaven property as they could lay hands on and that having got it, they bundled Chatfield out and dumped him down here, having no further use for him. And, if that's the Pike, and they're returning here, it's because they want Chatfield!"

Copplestone suddenly recognized that feminine instinct had solved a problem which masculine reason had so far left unsolved.

"By gad!" he exclaimed softly. "Then, if that is so, this is merely another of Chatfield's games. You don't believe him?"

"I would think myself within approachable distance of lunacy if I believed a word that Peter Chatfield said," she answered calmly. "Of course, he is playing a game of his own all through. He shall have his pension—if I have the power to give it—but believe him—oh, no!"

"Let's follow them," said Copplestone. "Something's going to happen—if that is the Pike."

"Look there, then," exclaimed Audrey as they began to descend the cliff. "Chatfield's already uneasy."

She pointed to the beach below, where Chatfield, now fully overcoated and shawled again, had mounted a ridge of rock, and while gazing intently at the vessel, was exchanging remarks with Vickers, who had evidently said something which had alarmed him. They caught Chatfield's excited ejaculations as they hurried over the sand.

"Don't say that, Mr. Vickers!" he was saying imploringly. "For God's sake, Mr. Vickers, don't suggest them there sort of thoughts. You make me feel right down poorly, Mr. Vickers, to say such! It's worse than a bad dream, Mr. Vickers—no, sir, no, surely you're mistaken!"

"Bet you a fiver to a halfpenny it's the Pike," retorted Vickers. "I know her lines. Besides she's heading straight here. Copplestone!" he cried, turning to the advancing couple. "Do you know, I believe that's the Pike!"

Copplestone gave Audrey's elbow a gentle squeeze.

"Look at old Chatfield!" he whispered. "By gad!—look at him. Yes," he called out loudly, "We know it's the Pike—we saw that from the top of the cliffs. She's coming straight in."

"Oh, yes, it's the Pike," exclaimed Audrey. "Aren't you delighted, Mr. Chatfield."

The agent suddenly turned his big fat face towards the three young people, with such an expression of craven fear on it that the sardonic jest which Copplestone was about to voice died away on his lips. Chatfield's creased cheeks and heavy jowl had become white as chalk; great beads of sweat rolled down them; his mouth opened and shut silently, and suddenly, as he raised his hands and wrung them, his knees began to quiver. It was evident that the man was badly, terribly afraid—and as they watched him in amazed wonder his eyes began to search the shore and the cliffs as if he were some hunted animal seeking any hole or cranny in which to hide. A sudden swelling of the light wind brought the steady throb of the oncoming engines to his ears and he turned on Vickers with a look that made the onlookers start.

"For goodness sake, Mr. Vickers!" he said in a queer, strained voice. "For heaven's sake, let's get ourselves away! Mr. Vickers—it ain't safe for none of us. We'd best to run, sir—let's get to the other side of the island. There's caves there—places—let's hide till something comes from the other islands, or till these folks goes away—I tell you it's dangerous for us to stop here!"

"We're not afraid, Chatfield," replied Vickers. "What ails you! Why man, you couldn't be more afraid if you'd murdered somebody! What do you suppose these people want? You, of course. And you can't escape—if they want you, they'll search the island till they get you. You've been deceiving us, Chatfield—there's something you've kept back. Now, what is it? What have they come back for?"

"Yes, Mr. Chatfield, what has the Pike come back for?" repeated Audrey, coming nearer. "Come now—hadn't you better tell?"

"It is the Pike," remarked Copplestone. "Look there! And they're going to send in a boat. Better be quick, Chatfield."

The agent turned an ashen face towards the yacht. She had swung round and come to a halt, and the rattle of a boat being let down came menacingly to the frightened man's ears. He tittered a deep groan and his eyes again sought the cliffs.

"It's not a bit of good, Chatfield," said Vickers. "You can't get away. Good heavens, man!—what are you so frightened for!"

Chatfield moaned and drew haltingly nearer to the other three, as if he found some comfort in their mere presence.

"It's the money!" he whispered. "The money as was in the Norcaster Bank—two lots of it. He—the Squire—gave me authority to get out his lot what was standing in his name, you know—and the other—the estate lot—that was standing in mine—some fifty thousand pounds in all, Mr. Vickers. I had it all in gold, packed in sealed chests—and they—those on board there—thought I took them chests aboard the Pike with me. I did take chests, d'ye see—but they'd lead in 'em. The real stuff is hidden—buried—never mind where. And I know what they've come back for!—they've opened the chests I took on board, and they've found there's naught but lead. And they want me—me!—me! They'll torture me to make me tell where the real chests, the money is—torture me! Oh, for God's sake, keep 'em away from me—help me to hide—help me to get away—and I'll tell Miss Greyle then where the money's hid, and—oh, Lord, they're coming! Mr. Vickers—Mr. Vickers—"

He cast himself bodily at Vickers, as if to clutch him, but Vickers stepped agilely aside, and Chatfield fell on the sand, where he lay groaning while the others looked from him to each other.

"Ah!" said Vickers at last. "So that's it, is it, Chatfield? Trying to cheat everybody all round, eh? I suppose you'd have told Miss Greyle later that these people had collared all that gold—and then you'd have helped yourself to it? And now I know what you were doing on that yacht when we boarded it—you were one of the gang, and you meant to hook it with them—"

"I didn't—I didn't!" screamed Chatfield, beating the sand with his hands and feet. "I meant to slip away from 'em at a Scotch port we was to call at, and then—"

"Then you'd have gone back to the hidden chests and helped yourself," sneered Vickers. "Chatfield, you're a wicked old scoundrel, and an unmitigated liar! Give me that paper that Miss Greyle signed, this instant!"

"No!" interjected Audrey. "Let him keep it. He'll have trouble enough presently. It's very evident they mean to have him."

Chatfield heard the last few words and looked round at the edge of the surf. The boat had grounded on the shingle, and half a dozen men had leapt from it and were coming rapidly up the beach.

"Armed, by George!" exclaimed Copplestone. "No chance for you, Chatfield!"

The agent suddenly sprang to his feet with a howl of terror. He gave one more glance at the men and then he ran, clumsily, but with a speed made desperate by terror. He made straight for the rocks—and at that, two of the men, at a word from their leader, raised their rifles and fired. And with a shriek that set all the echoes ringing, the sea-birds screaming, and made Audrey clap her hands to her ears, Chatfield threw up his arms and dropped heavily on the sands.

"That's sheer murder!" exclaimed Vickers, as the yachtsmen came running up. "You'll answer for that, you know. Unless you mean to murder all of us."

The leader, a smiling-faced fellow, touched his cap respectfully, and grinned from ear to ear.

"Lor' bless you, sir, we shot twenty feet over his head!" he said. "He's too precious to shoot: they want him badly on board there. Now then, men, pick him up and get him into the boat—he'll come round quick enough when he finds he hasn't even a pellet in him. Handy, now! Captain's compliments, sir," he went on, turning again to Vickers, and pointing to certain things which were being unloaded from the boat, "and as he understands that no vessel will pass here for two more days, sir, he's sent you further provisions, some more wraps, and some books and papers."

CHAPTER XXIV
THE TORPEDO-BOAT DESTROYER

Before Vickers and his companions had recovered from the surprise which this extraordinary cool message had given them, the men had bundled Chatfield across the beach and into the boat and were pulling quickly back to the Pike.

Audrey broke the silence with a ringing laugh.

"Captain Andrius is certainly the perfection of polite pirates," she exclaimed. "More food—more wraps—and books and papers! Was any marooned mariner ever one-half so well treated?"

"What's the fellow mean about no vessel passing here for two more days?" growled Copplestone, who was glaring angrily at the yacht. "What's he so meticulously correct for?"

"I should say that he's referring to some weekly or bi-weekly steamer which runs between Kirkwall and the mainland," replied Vickers. "Well—it's good to know that, anyhow. But wait until the Pike's vamoosed again, and we'll make up such a column of smoke that it'll be seen for many a mile. In fact, I'll go and gather a lot of dried stuff now—you two can drag those boxes and things up the beach and see what our gaolers have been good enough to send us."

He went away up the cliffs, and Audrey and Copplestone, once more left alone, looked at each other and laughed.

"That's right," said Copplestone. "What I like about you is that you take things that way."

"Is it any use taking them any other way?" she asked. "Besides I've never been at all frightened nor particularly concerned. I've always felt that we were only put here so that we should be out of the way while our captors got safely away with their booty, and as regards my mother, I know her well enough to feel sure that she quickly sized things up, and that she'll have taken measures of her own. Don't be surprised if we're rescued through her means or if she has set somebody to work to catch the predatory Pike."

"Good!" said Copplestone. "But as regards the Pike, I wonder if you observed something during the few minutes she was here. I'm sure Vickers didn't—he was too busy, watching Chatfield."

"So was I," replied Audrey. "What was it?"

"I believe I'm unusually observant," answered Copplestone. "I seem to see things—all at once, don't you know. I saw that since we made her acquaintance—and were unceremoniously bundled off her—the Pike has got a new and quite different coat of paint. And I daresay she's changed her name, too. From all of which I argue that when they got rid of us here, the people who are working all this slipped quietly back to some cove or creek on the Scotch coast, did a stiff turn at repainting, and meant to be off to the other side of the world under new colours. And while this was going on, Andrius, or his co-villain, found time to examine those chests that Chatfield told us of, and when they found that Chatfield had done them, they came back here quick. Now they're off to make him reveal the whereabouts of the real chests."

"Won't they be rather running their necks into a noose?" suggested Audrey. "I'm dead certain that my mother will have raised a hue and cry after them."

"They're cute enough," said Copplestone. "Anyway, they'll run a good many risks for the sake of fifty thousand pounds. What they may do is to run into some very quiet inlet—there are hundreds on these northern coasts—and take Chatfield to his hiding-place. Chatfield's like all scoundrels of his type—a horrible coward if a pistol's held to his head. Now they've got him, they'll force him to disgorge. Hang this compulsory inactivity!—my nerves are all a-tingle to get going at things!"

"Let's occupy ourselves with the things our generous gaolers have been kind enough to send us, then," suggested Audrey. "We'd better carry them up to our shelter."

Copplestone went down to the things which the boat's crew had deposited on the beach—a couple of small packing-cases, a bundle of wraps and cushions, and some books, magazines and newspapers. He picked up a paper with a cry which suggested a discovery of importance.

"Look at that!" he exclaimed. "Do you see? A Scotsman! Today's date! And here—Aberdeen Free Press—same date!"

"Well?" asked Audrey. "And what then?"

"What then?" demanded Copplestone. "Where are your powers of deduction? Why, that shows that the Pike was somewhere this morning where she could get the morning papers from Aberdeen and Edinburgh—therefore, she's been, as I suggested, somewhere on the Scotch coast all night. It's now noon—she's a fast sailer—I guess she's been within sixty miles of us ever since she left us."

"Isn't it more pertinent to speculate on where she'll be when we want to find her?" asked Audrey.

"More pertinent still to wonder when somebody will come to find us," answered Copplestone as he shouldered one of the cases. "However, there's a certain joy in uncertainty, so they say—we're tasting it."

The joys of uncertainty, however, were not to endure. They had scarcely completed the task of carrying up the newly-arrived stores to the shelter which they had made in an angle of the rocks when Vickers hailed them from a spur of the cliffs and waved his arms excitedly.

"I say, you two!" he shouted. "There's a craft coming—from the south-west. Come up! There!" he added, a few minutes later, when they arrived, breathless, at his side. "Out yonder—a mere black blot—but unmistakable! Do you know what that is, either of you? You don't? All right, I do—ought to, because I'm a R.N.V.R. man myself. That's a T.B.D., my friends!—torpedo-boat destroyer. What's more, far off as she is, my experienced eye and sure knowledge tell me exactly what she is. She's a class H. boat built last year—oil fuel—turbines—runs up to thirty knots—and she's doing 'em, too, just now! Come on, Copplestone—more stuff on this fire!"

"I don't think we need be uneasy," said Copplestone. "Miss Greyle thinks that her mother will have raised a hue and cry after the Pike. This torpedo thing is probably looking round for us. She—what's that?"

The sudden sharp crack of a gun came across the calm surface of the sea, and the watchers turning from their fire towards the black object in the distance saw a cloud of white smoke drifting away from it.

"Hooray!" shouted Vickers. "She's seen our smoke-pillar! Shove more on, just to let her know we understand. Saved!—this time, anyway."

Half-an-hour later, a spick and span and eminently youthful-looking naval lieutenant raised his cap to the three folk who stood eagerly awaiting his approach at the edge of the surf.

"Miss Greyle? Mr. Vickers? Mr. Copplestone?" he asked as he sprang from his boat and came up. "Right!—we're searching for you—had wireless messages this morning. Where's the pirate, or whatever he is?"

"Somewhere away to the southward," answered Vickers, pointing into the haze. "He was here two hours ago—but he's about as fast as they make 'em, and he's good reason to show a clean pair of heels. However, we've ample grounds for believing him to have gone due south again. Where are you from?"

"Got the message off Dunnett Head, and we'll run you to Thurso," replied the rescuer, motioning them to enter the boat. "Come on—our commander's got some word or other for you. What's all this been?" he went on, gazing at Audrey with youthful assurance as they moved away from the shore. "You don't mean to say you've actually been kidnapped?"

"Kidnapped and marooned," replied Vickers. "And I hope you'll catch our kidnapper—he's got a tremendous amount of property on him which belongs to this lady, and he'll make tracks for the other side of the Atlantic as soon as he gets hold of some more which he's gone to collect."

The lieutenant regarded Audrey with still more interest. "Oh, all right," he said confidently. "He'll not get away. I guess they've wirelessed all over the place—our message was from the Admiralty!"

"That's Sir Cresswell's doing," said Copplestone, turning to Audrey. "Your mother must have wired to him. I wonder what the message is?" he asked, facing the lieutenant. "Do you know?"

"Something about if you're found to tell you to get south as fast as possible," he answered. "And we've worked that out for you. You can get on by train from Thurso to Inverness, and from Inverness, of course, you'll get the southern express. Well put you off at Thurso by two o'clock—just time to give you such lunch as our table affords—bit rough, you know. So you've really been all night on that island?" he went on with unaffected curiosity. "What a lark!"

"You'd have had an opportunity of studying character if you'd been with us," replied Vickers. "We lost a fine specimen of humanity two hours ago."

"Tell about it aboard," said the lieutenant. "We'll be thankful—we've been round this end-of-everywhere coast for a month and we're tired. It's quite a Godsend to have a little adventure."

Copplestone had been right in surmising that Sir Cresswell Oliver had bestirred himself to find him and his companions. They were presently shown his message. They were to get to Norcaster as quickly as possible, and to wire their whereabouts as soon as they were found. If, as seemed likely, they were picked up on the north coast of Scotland, they were to ask at Inverness railway station for telegrams. And to Inverness after being landed at Thurso they betook themselves, while the torpedo-boat destroyer set off to nose round for the Pike, in case she came that way back from wherever she had gone to.

Copplestone came out of the station-master's office at Inverness with a couple of telegrams and read their contents over to his companions in the dining-room to which they adjourned.

"This is from Mrs. Greyle," he said. "'All right and much relieved by wire from Thurso. Bring Audrey home as quick as possible.' That's good! And this—Great Scott! This is from Gilling! Listen!—'Just heard from Petherton of your rescue. Come straight and sharp Norcaster. Meet me at the "Angel." Big things afoot. Spurge most anxious see you. Important news. Gilling.' So things have been going on," he concluded, turning the second telegram over to Vickers. "I suppose we'll have to travel all night?"

"Night express in an hour," replied Vickers. "We shall make Norcaster about five-thirty tomorrow morning."

"Then let us wire the time of our arrival to Gilling. I'm anxious to know what has brought him up there," said Copplestone. "And we'll wire to Mrs. Greyle, too," he added, turning to Audrey. "She'll know then that you're absolutely on the way."

"I wonder what we're on the way to?" remarked Vickers with a grim smile. "It strikes me that our recent alarms and excursions will have been as nothing to what awaits us at Norcaster."

What did await them on a cold, dismal morning at Norcaster was Gilling, stamping up and down a windswept platform. And Gilling seized on Copplestone almost before he could alight from the train.

"Come to the 'Angel' straight off!" he said. "Mrs. Greyle's there awaiting her daughter. I've work for you and Vickers at once—that chap Spurge is somewhere about the 'Angel,' too—been hanging round there since yesterday, heavy with news that he'll give to nobody but you."