“What time you goin' to start for home, Is?” he asked.

“Oh, in an hour or so,” was the absent-minded reply.

“Humph! You'd better cast off afore that or you'll be fog bound. It'll be thicker'n dock mud toward sundown, and you'll fetch up in Waptomac 'stead of East Harniss, 'thout you've got a good compass.”

“Oh, my compass is all right,” began Issy, and stopped short. The lobsterman made other attempts at conversation, but they were unproductive. McKay was gazing at the growing fog bank and thinking hard. To doctor an engine may be difficult, but to get lost in a fog—He took the compass from the glass-lidded binnacle by the wheel, and carrying it into the little cabin, placed it in the cuddy forward.

It was nearer five than four when the Lady May, her engine barking aggressively, moved out of Denboro Harbor. Mr. Bartlett, the passenger, had been on time and had fumed and fretted at the delay. But Issy was deliberation itself. He had forgotten his quahaug rake, and the lapse of memory entailed a trip to the blacksmith's. Then the gasoline tank needed filling and the battery had to be overhauled.

“Are you sure you can make it?” queried Sam anxiously. “It's important, I tell you. Mighty important.”

The skipper snorted in disgust. “Make it?” he repeated. “If the Lady May can't make fourteen mile in two hours—let alone two'n a ha'f—then I don't know her. She's one of them boats you read about, she is.”

The Cape makes a wide bend between Denboro and Trumet. The distance between these towns is twenty long, curved miles over the road; by water it is reduced to a straight fourteen. And midway between the two, at the center of the curve, is East Harniss.

The Lady May coughed briskly on. There was no sea, and she sent long, widening ripples from each side of her bow. Bartlett, leaning over the rail, gazed impatiently ahead. Issy, sprawled on the bench by the wheel, was muttering to himself. Occasionally he glanced toward the east. The gray fog bank was now half way to the zenith and approaching rapidly. The eastern shore had disappeared.

“Is! Hi, Is! What are you doing? Don't kill him before my eyes.”