Fifteen Saturday, April 23 Cocolí Locks, Panama Canal Eva nudged past the lock gate with Taffy and Finn just before it closed. They cut it so close that Finn almost lost his fluke in their final push. And still, they weren’t safe. They were away from the ship, but they were still in danger of the oncoming tsunami. Eva could already feel the draw of water from the canal, moving away from her out toward the ocean, even though the Pacific was miles off. Where could they go? The others were a ways ahead in the canal, and Eva swam up to them and spit out her snorkel. “We’ll never make it to the ocean,” she said. “But we’ve got to get out of the canal. And I’m not leaving the dolphins.” Sarah nodded in agreement. “Any ideas?” Eva looked around. On her walk through the City of Knowledge,

