Luke darts away from her makeshift crab claw, shriek-laughing, the collected bits of sea glass he's found rattling in the cargo pockets of his swim shorts. Cu bounces next to them, barking happily at whatever game this is. "Hey, no fair, I don't have one," he says, though he doesn't really mind at all and it's pretty clear from his face.

"If you're a giant crab, I get to be a giant squid," he grins, and grabs some of the dry seaweed left at the high tide line, waving it around like tentacles at her. It seems fair. Squid eat crab, but sometimes crabs eat squid, too.