Life for Roz and the animals on their island is perfect. But when mysterious, dangerous waters surround the island, the animals are forced inland to fight over dwindling resources. Roz calms and organizes the animals, but the poison tide takes a terrible toll on the island. So the wild robot sets out across the ocean, determined to stop the poison tide. During her journey, Roz encounters amazing geological formations and incredible creatures, and...

George, the Man in the Yellow Hat, and Marco head to the beach and dig for clams, swim with dolphins, and bury treasure, but when the water comes in and takes their treasure away, they learn all about tides.

Reluctant to take her little brother to the beach because of his constant questions, a teenager is soon grateful for his newly acquired knowledge of the tides.

"In this high-interest accessible novel for teen readers, Kai and his stepfather must stop an ancient predator before the tide turns."-- Kai is angry when he's forced to join his new stepdad, Rick, on a research trip to Blind Bay: they're on a floating lab in the middle of nowhere. Rick, a marine scientist, is using sound waves to explore deep underwater caves. They awaken an ancient predator from the depths of the caves... and now it is hunting...