He is quite deep, he realizes, and he can’t swim well in trousers and boots. He fumbles at his bootlaces, but they are tied in double knots. He pulls a knife from his belt and slashes through the laces, kicks the boots off, sheds his pants and drawers too. Naked, he forces himself to be calm for ten more seconds, brings his knees to his chest and hugs them. His body’s natural buoyancy takes over. He knows that he must be rising slowly toward the surface now, like a bubble. The light is growing brighter. He need only wait. He lets go of the knife, which is only slowing him down.