At two o'clock on a Friday morning toward the end of August Spurling and Whittington started with six tubs of trawl, baited with salted herring, for Clay Bank. Long before sunrise the last fathom of ground-line had gone overboard and the tubs were empty.

Swinging the Barracouta about, they retraced their course to the first buoy.

A long, oily ocean swell, heaving in from the south, undulated the breezeless sea. The air was mild, almost suspiciously so. Dawn was breaking redly as they reached their starting-point and prepared to pull in the trawl.

"I'll haul the first half, Perce," volunteered Spurling.

Drawing the dory alongside, he cast off her painter and sprang aboard. Before taking in the buoy he stood for a half-minute, scanning sky and sea.

"Almost too fine!" he remarked. "I don't like that crimson east. You remember how the rhyme goes:

"A red sky in the morning,
Sailors take warning.

Looks to me like a weather-breeder. Those swells remind me of a lazy, good-natured, purring tiger. You wouldn't think they'd swamp a toy boat; but let the wind blow over 'em a few hours and it's an entirely different matter. Still, I don't think we'll see any really bad weather before midnight at the earliest. Guess we'd better plan not to set to-morrow."

He was soon unhooking hake and coiling the trawl into its tub. Percy kept the Barracouta close by. At the middle buoy he relieved Spurling in the dory. The set yielded over two thousand pounds of fish, principally good-sized hake.

"Very fair morning's work," said Spurling. "We'll leave that last load in the dory. Now for home!"

Soon the sloop was heading for Tarpaulin, the weighted dory towing behind. They were almost up to Brimstone Point when, with a final explosion, the engine stopped. Spurling gave an exclamation of mingled disgust and relief.

"Something's broken! Well, we're lucky it didn't give way five miles back. It'd have been a tough job to warp her in so far, with a white-ash breeze. Cast off that dory, Perce!"

As Percy pulled the smaller craft alongside the distant quick-fire of an approaching engine fell upon his ears. He glanced quickly toward the northeast.

"No blisters for us this morning!" he shouted. "Here comes Captain Ben in the Calista! He'll tow us in."

Presently the lobster-smack was alongside, and soon the Calista, with sloop and dory in tow, was heading for Sprowl's Cove. Jim and Percy had left their boat and come on board the smack. They noticed that Higgins seemed unusually serious.

"What's the matter, Cap?" inquired Spurling. "Any trouble with lobsters?"

"No," replied the captain, soberly, "there's no trouble with lobsters, so far as I know. Haven't met with any losses to speak of, and I'm paying twenty-five cents a pound. But something's happened to a friend of yours. Remember that stranger who made you a call a couple of weeks ago?"

"Sure! What about him?"

"Well, coming across from Swan's Island yesterday afternoon, I nearly ran over a boat, bottom up, close to Griffin Ledge. I managed to spell out the name on her stem; it was the old Helen. Thorpe had made his sheet fast once too often, as I've always said he would. So he's gone, dog, cats, and the whole shooting-match. I cruised about for a while to see if I could find anything, but it wasn't any use; the tide runs over those ledges like a river. The old fellow had a good streak in him, and I'm all-fired sorry he had to go that way. It only shows what rum can do for a man, if you give it a fair chance."

The tragic news had a sobering effect upon the boys. Percy, in particular, remembering the habits of certain of his friends, took the story to heart. Nobody said anything more until they were inside the cove and running toward the lobster-car. Budge and Throppy saw them coming and rowed out in the pea-pod.

While the lobsters were being dipped aboard the smack and weighed, Spurling tinkered the Barracouta's engine. At last he discovered the cause of the breakdown.

"Broken piston-rod!" he exclaimed. "That means a trip to Matinicus. And we've got to go right away, so we can get back before night ahead of the storm that's coming. We must fix that engine, or we may lose two or three days' good fishing, after the sea smooths down. Perce, you and I'll go in the dory. You other fellows'll have to dress those hake alone this time."

"I'll tow you across, Jimmy," offered Higgins. "But it looks a bit smurry to me. I think there may be a norther coming; and you wouldn't want to get caught out in that. Remember what happened to Bill Carlin!"

"I know," answered Spurling. "But that engine's no good without a piston-rod. I was born in a dory. Besides, if it should blow too hard, we can stop on Wooden Ball or Seal Island."

A few minutes later the Calista, with Jim and Percy aboard and the dory in tow, was moving away from Tarpaulin. An easy run of two hours brought them to Matinicus. Higgins dropped his anchor in the outer harbor near Wheaton's Island, and the boys rowed ashore in their dory, landing in the head of the little cove near the fish-wharf.

Percy made a few necessary purchases at the store while Jim attended to the piston-rod. A half-hour later they were pushing off the dory, ready for their long row back. The sky was hazy and the sea calm. In the outer harbor Captain Ben hailed them from the Calista.

"Be good to yourselves, boys, and don't risk too much. You won't have any trouble getting to Seal Island; if it looks bad, you'd better hang up there with Pliny Ferguson. He'll be glad of company at his shack for the next two days; for, unless I'm 'way off, there won't be many trawls set or traps pulled until next Monday. I'm going to stick to Matinicus till the blow is over."

It was still calm when they passed the Black Ledges and headed for the northeast point of Wooden Ball. Jim was rowing, and the dory drove easily onward under his powerful strokes.

Percy looked north. The mountains on the mainland had vanished, and even the heights on Vinalhaven were being blotted out; but as yet not a breath of air disturbed the glassy, undulating sea.

They were now only a few hundred feet north of the ledges on the extremity of the Ball. The swell was breaking white against its barnacled granite boulders in a long, crashing rumble.

"Let me spell you at the oars, Jim," said Percy.

"Don't care if you do! And pass that bag of hard bread forward! I feel hungry enough to eat the whole of it. Wonder what Filippo'll have for supper to-night!"

The boys had been in such a hurry to get away from Matinicus that they had not taken time for any dinner; so both had keen appetites. Jim made a hearty lunch on the crisp crackers. Percy's mouth watered as he swung to and fro at the oars, facing his companion. Ten weeks ago he would have disdained such plain fare; but now he could eat it with a relish. His gristle was hardening into bone.

Four or five of the brittle disks satisfied Jim's hunger.

"Your turn now, Perce! Let me take her again!"

"Hadn't I better row a little longer?"

"No! I feel good for five miles. Those crackers put the strength into a man."

Percy attacked the bag with an appetite equal to Jim's. Malcolm's Ledges were near, breaking white half-way from the Ball to Seal Island. To Percy's ears the roar of the surf sounded louder.

"Sea's making up a bit, isn't it, Jim?"

"Yes; but I don't think it'll amount to anything for a long time yet."

Down swept a squall from the north, roughening and darkening the water. The dory careened a trifle as it smote her side.

"Well, Perce, we're more than a third of the way home. There's Brimstone Point, eight miles ahead. We may see a little rough water before we get there. Lucky you're not seasick nowadays!"

The squall passed, but left a steady breeze blowing in its wake. The sky was gray, the sea leaden. The horizon all around seemed to be contracting, and the familiar islands were losing their height.

They ran to leeward of the breaker on Gully Ledge, and passed into smooth water under the protecting barrier of Seal Island. Pliny Ferguson's shack was in plain view, and its owner came out and swung his hand to them. Spurling remembered Captain Higgins's advice, and hesitated.

"What do you say, Perce? I'll put it up to you. Shall we keep on or stop here with Pliny? Seems to me there isn't the least doubt about our reaching the island before dark; but I don't want to make you run any needless risk. So I'll do as you say. Pliny'll be glad to make us comfortable, and we can slip across after the gale is over."

Percy scanned the steep, desolate cliffs a half-mile to the north.

"What would you do if you were alone, Jim?"

"Make for Tarpaulin as fast as oars would take me."

"Then I say keep on!"

"Keep on it is, then," assented Spurling.

Shielded from the wind by the high shore, the dory sped on east by south. The island was over a mile long. When they emerged from the protection of the ledges on its eastern end they could see that the breeze had increased in force. Up to windward in the direction of Isle au Haut Bay occasional white-caps were breaking.

Spurling stopped rowing and took a long look around. Then he pulled off his sweater, settled himself firmly on the thwart, and braced his heels against the timber nailed across the bottom of the dory. His oar-blades caught the water with a long, steady stroke.

"We'll head north of the island," he said to Percy, after a few minutes of vigorous rowing. "The flood'll be running for the next three hours, and that'd naturally set us toward the north; but before we get to Tarpaulin the wind'll be blowing us the other way. We've got to allow for both."

Fifteen minutes went by, thirty, a full hour. Little by little Seal Island sank behind them and the familiar outlines of Tarpaulin loomed clearer and higher. The increasing breeze, blowing against the ocean current, kicked up a lively chop, on which the dory danced skittishly. It took all Spurling's strength and skill to drive her onward.

At four o'clock they still had between four and five miles to go. The sea was alive with white horses. As the boat fell into the trough Percy momentarily lost sight of the island. He now recognized Spurling's wisdom in heading so far north of their goal. But for that they would inevitably have been blown off their course.

Jim was buckling to his task like a Trojan. Bare-headed, shirt open at the neck, sleeves rolled up above his elbows, he swayed to and fro, a tireless, human machine. His blades entered the rough sea cleanly and came out on the feather. Admiringly, almost enviously, Percy watched the play of the banded muscles on his brawny forearms. He would have given anything to be as strong as his dory-mate.

Past five o'clock, and still over two miles to the island. It was growing rougher every minute. The gale had fairly begun. It sheared the crests off the racing billows and flung them over the boat in showers of spray. Now and then a bucketful came aboard. It kept Percy busy bailing.

Occasionally Jim brought the dory head to the wind and lay on his oars to rest. After all, human muscles, powerful as they may be, are not steel and india-rubber.

"Pretty rough, isn't it?" said he, at one of these intervals. "Seasick, old man? You look a little white around the gills."

Percy shook his head. The situation was too serious for seasickness. In spite of the jocularity of his words, Jim's voice sounded hollow. Both of them knew that it meant a hard fight to reach Tarpaulin.

Silence, gray and leaden as the misty sky, settled over the dory. Spurling was throwing all the strength he possessed into every stroke; Percy bailed continuously. It took considerably more than an hour to make the next mile and a half. A rainy haze, driving down from the north, had shrouded the island, and Brimstone Point was barely visible.

Jim's strokes were slower; they lacked their earlier force. His face showed the strain of the last hour. Uneasily Percy noted these signs of weariness.

"Tired, Jim?"

"Yes."

The brief monosyllable struck Percy with dismay. If Spurling's strength should give out, what would happen to the dory?

"Don't you want me to row awhile?"

"You can take her for a few minutes."

Scrambling forward, Percy grasped the oars and took Jim's place on the thwart. The latter lay down flat on his back in the bottom of the dory. Apparently he was not far from complete exhaustion.

"Keep her up into the wind as well as you can," he directed.

Percy did his best; but he found it a hard job. The gale, now far stronger than the tide that flowed against it under the surface, was forcing them steadily southward. Brimstone Point could just be seen, a half-mile to the northeast.

Though he pulled his heart out, Percy could tell that he was losing ground, or rather water, every second. The wind mocked his efforts. He could not keep the boat on her course. Big rollers swashed against the port bow and broke aboard. Jim raised a drenched face, haggard with weariness, and took in the situation.

"Harder, Perce!" he urged. "Hold her up till I can get my breath. It's the ocean for us to-night, if we don't hit Brimstone."

Spurred by this exhortation, Percy jerked at the oars savagely and unskilfully. As he swayed back there was a sharp snap, and the starboard oar broke squarely, just above the blade.

Round swung the dory, head to the south. Up started Spurling with a cry of alarm, his fatigue forgotten.

"You've done it now!"

Wrenching the port oar from his horrified mate, he sprang aft, dropped it in the notch on the stern, headed the boat once more for the island, and began sculling with all his might.

It was a hopeless attempt. However strong he might be, no man with only one oar could make headway into the teeth of such a gale. For a time his desperate efforts held the dory in her place. Then little by little she began to go astern.

With sinking heart Percy watched Spurling's shoulders rack and twist as he threw his last ounce into his sculling. By degrees his motions became slower and more painful. Suddenly he pulled in the oar and dropped it clattering aboard.

"No use!" he groaned as he toppled backward and collapsed in the bottom of the dory.