I took a breath and swam onwards, limbs tightening on every stroke, the ship holding a single shape, a static distance. I swallowed more water, pushing desperately on, lungs heaving. Endeavour came into focus at last. When I reached it I hung on the surface, floating gently in the swell. Even this close, the ship looked different, two-dimensional, as if painted onto water. I couldn’t believe we lived in this place. Several figures bobbed around it – Stefan and the other divers. They were lying forward with their faces planted in the water, fascinated, limbs splayed like stars.