Twenty Monday, May 23 Pearl Harbor, O‘ahu, Hawai‘i Taffy took off, pumping her tail as hard as she could. She was listing to the right, but not as much as usual; she knew the new object, where her old fin used to be, had something to do with it. From time to time, she could still feel her old fin. Even though it was gone, she still felt it there. But right now, she had work to do. Eva had said: go, find, mine, mark, return. And that’s exactly what she would do. She’d never played this game with Eva until now—didn’t think Eva knew what a mine was. This had been Taffy’s favorite assignment back when Thomas worked with her. She’d been good at it, and her efforts had made Thomas and the other human members of her pod very happy. That had been long ago in a different sea, one with less sal

