Also, she’d been as interested in Joey as I was in her. Being Marie, she hadn’t actually broken the letter of any regulations when she took out a Board sub at Papeete, but she most certainly strained the spirit of most of them. She hadn’t said where she was going and had last checked in between Pitcairn and Oejo a thousand miles from where I was now sinking with the remains of Pugnose; but no one who knew her had any doubts about where to look first.

The boss was human enough to volunteer me for the look-see. My own inclination would have been to do just that — take a sub and see what had happened; but brains won out. Bert’s disappearance could have been an accident, although there were already grounds for suspicion about the Easter Island area. Joey’s vanishing within half a dozen miles of the same spot could conceivably have been coincidence — the sea can still outguess man on occasion. After Marie’s loss, though, only a very stupid person would have gone charging into the region any more obviously than he could help.

Therefore, I was now a thousand feet below the top of the Pacific and several times as far above the bottom, camouflaged as part of a wrecked boat.

I didn’t know exactly how much water was still below me; even though my last fix on the surface had been pretty good and I’d acquired an excellent knowledge of the bottom contours north of Rapanui, I couldn’t be sure I was going straight down. Currents near an island are not the smooth, steady things suggested by those little arrows on small-scale maps of the Pacific.

I might, of course, have tried echo-sounding, but to control that temptation I had no emission instruments in the tank except floodlights; and I had no intention of using even those until I had some assurance that I was alone. See without being seen was the current policy. The assurance would come, if ever, very much later, after I had reached the bottom and spent a good, long time listening.