Snails and sea slugs use Sea Slime. But, did you know that coral and clownfish need slime too? Marine scientist Ellen Prager takes us deep into the sea to introduce us to fascinating and bizarre animals that use slime to capture their food, protect themselves from harm, or even move from place to place in their underwater environment.

Being a teenager is never easy. Especially when you can talk to sharks! Tristan Hunt has enough to worry about with girl troubles, his parents, and trying to keep his extraordinary abilities a secret. But when Tristan and his friends are called upon to investigate the disappearance of stingrays and other ocean life in the waters off Grand Cayman, the stakes are higher than they've ever been before. Can Tristan solve the mystery of the missing stingrays...

After thwarting the dastardly plans of J. P. Rickerton, Tristan Hunt is having trouble keeping his newfound talents a secret. And if undercover spies and a mysterious illness threatening to expose the secrets of camp weren't enough, reports of dying fish and disappearing sponge in the Caribbean call Tristan and his friends back into action. Will the Sea Guardians discover the source of the problem before time runs out? Can the escape the threat of...