Confronting the slush of Deep Water Cove, with the finger of the Little Fiddler of Amen Island awaiting his ministration beyond, Doctor Luke had misled the faithful Billy Topsail into the assumption of his acquiescence. It was not in his mind to return to Candlestick Cove that night. It was in his mind to gain the shore and proceed upon his professional call. And there was reason in this. For when the group of Arctic ice—still rhythmically swinging in and out with the great seas from the open—drove down upon the broken base of Deep Water Cliff, it compressed the ice between.

At the moment of greatest compression the slush was reasonably solid ground. When the Arctic ice subsided with the wave, the slush expanded in the wider space it was then permitted to occupy. A man could cross—a light, agile man, daring the depth of the slush, might be able to cross—when the slush was compressed. No man could run all the way across. It must be in two advances. Midway he would be caught by the subsidence of the wave. From this he must preserve himself.

And from this—from dropping through the field of slush and having it close over his head—he might preserve himself by means of his gaff.

"Wel-ll," Doctor Luke had admitted, apparently resigned, "no doubt you're right, Billy. I——"

Now the Arctic ice was poised.

"Ay, sir. An' you're more reasonable than ever I knowed you t'——"

A sea was rolling in.

"Wel-ll," the Doctor drawled, "as I grow older——"

Then came the moment of advantage. Doctor Luke ran out on the slush before Billy Topsail could reach out a hand to restrain him. It was indiscreet. Doctor Luke had been too eager to escape—he had started too soon; the sea was not down—the slush was not squeezed tight. A foot sank to the ankle. Doctor Luke jerked it out The other foot went down to the calf of the leg. Doctor Luke jerked it—tugged it. It was fast. The slush, in increasing compression, had caught it. He must wait for the wave to subside.

His flesh crept with the horror of the thing. He was trapped—caught fast! A moment later the sea was in retreat from the cliff and the slush began rapidly to thin. Doctor Luke employed the stratagem that is familiar to the coast for dealing with such ice as the slush in which he was entrapped. He waited—alert. There would come a moment when the consistency of the ice would be so thin that he would drop through.