“Well, Li. I think we’d better get back to our original anchorage. Your dad and mine must be back there by now. If they’re not, well, we’ll have to forget about the Sea Islander and really look for them. We may have to go for help.”
“Before we go, though, Biff, I’d like to go back down to the Sea Islander—”
“Again? What in the world for?”
“Not all the way. But don’t you think it would be a good idea if we could attach a marker to one of the loose lines? Then we’d be able to spot this location easily.”
“Good idea, Li. How near the surface do those loose lines come?”
“Oh, I’d guess twenty, maybe twenty-five feet. Won’t be much of a dive this time. Not after going down over forty feet.”
“Okay, Li. You lie there and rest. I’ll rig a marking buoy.”
Biff went below and took out another buoy from the yawl’s captain’s chest. This was an all-white one. He attached a short length of nylon rope to the buoy, and a metal clip to the other end of the rope.
Returning to the deck, he showed it to Li. “How will this do? I figure you can tie a fast knot in one of those loose lines, then just snap this metal fastener below the knot. Then it won’t slip off.”
“Swell, Biff. I’ve got my breath back now. This won’t take a minute.”