At six the _Barracouta_, carrying the five boys and towing the dory, started from Sprowl's Cove for Matinicus. It was so calm that the sails were of little assistance, and they had to depend almost entirely on the engine. Rounding Brimstone Point, they headed slightly north of west for Seal Island, about six miles away. Everybody took his turn at steering, Jim acting as instructor. "Any one of you may be called on to handle this boat alone some time in the next three months, and you can't begin learning how any too early." Percy's experience with automobiles stood him in good stead. He was naturally interested in machinery, and soon mastered the details of the _Barracouta's_ engine. The others also showed themselves apt pupils. At half past seven the high cliffs of Seal Island lay to the north. Passing for a mile along its rocky shores, they kept on toward Matinicus, now rising into view. Jim pointed to a breaker a little south of their course. "Malcolm's Ledges! A bad bunch of rocks. Years ago a fishing-schooner struck there in the night. Crew thought at first they'd reached safety, but they soon found it was only a half-tide ledge. The vessel heaved over it when the water rose, and sunk, so that only her topmast stuck out. One man, the sole survivor, hung to that. He was taken off in the morning, but his arm was worn almost to the bone by the swaying of the mast." Farther on they passed the long, treeless, granite hump of Wooden Ball, with its few lobstering-shacks, and sheep grazing in its grassy valleys. Ledge after ledge went by, until at last they entered the little rocky haven of Matinicus, crammed with moored sloops and power-boats, and ran in beside the high, granite fish-pier at its head. Percy found everything new and strange--the stilted wharves on the ledges, heaped with lobster-traps and festooned with buoys of all shapes and colors; the fish-pier with its open shed, sheltering the dark, discolored hogsheads rounded up with salted fish; the men in oilskin "petticoats," busy with splitting-knives on hake and cod and pollock and haddock, brought in by the noisy power-boats; the lighthouse-keepers from Matinicus Rock, five miles south, in military caps, oilskins, and red rubber boots, towing a dory to be dumped full of slimy hake heads for lobster bait; the post-office and general store above the cove, and the spruce-crowned rocks beyond it. [Illustration: THE CAMP AT SPROWL'S COVE] Jim pointed out a bronze tablet on a slanting ledge.