The floor of the lagoon angled down steeply from the entrance, and I realized this body of water was much deeper than the tributary that led to it. However, even a few meters down, the visibility in the lagoon was excellent, and I found the world beneath the surface as breathtaking as that above it. Varicolored fish darted through the fronds that rose from the floor, waving gracefully in the wake of my passing. Nevertheless, I stayed on the alert for danger, which I knew could be hidden behind a mask of beauty. In spite of the time I’d spent away from the ocean and diving, I was too experienced to do anything foolish. As I sank lower, I became aware of strange, powerful currents that threatened to tug at me. I knew if I got caught up in one, it could sweep me away from the Adelina toward

