'Eva lad loved the first slap of cold water on her face when she dived into the pool, then the bubbles peeling away from her hands like pearls. A shoal of parrotfish passed on her right, creating a golden wall that reflected the afternoon light. Ahead was a manta ray, its flanks rippling like a silk curtain, while the walrus hovered in the corner of her vision. As she pushed through a forest of kelp, it rasped against her cheeks. ...'