Several more Pingers had waded up into the shallows. One of them—a male, strapped with more gear than the others—had approached Ty, and seemed to be trying to communicate with him. Ty was grinning, but he kept cupping a hand around his ear and shaking his head. The Pinger reached out, gently took Ty’s wrist, and plucked at the black stuff of his dry suit. Ty responded by mimicking the same gesture on the slick skin of the Pinger’s arm. Both of them laughed. The Pinger’s teeth were white and they were sharp.