Trevor is back and ready for another mission! Author and illustrator duo, Sarah Gray and Steven Coates are back with a children's story with a difference - prepare to blast off with Trevor the Tortoise! Trevor was an amazing tortoise, with a secret deep inside his shell. His legs were tired, his feet were achy, and often he was not too well. But Trevor is no normal tortoise because at the darkest part of night he blasted off on a secret mission, this time to the deep blue sea. Razor teeth all gleaming and sharp have caused a huge marine commotion. The aqua dentist has gone on holiday, leaving sharks with toothache in the ocean! Can Trevor help? Join him on his toothy tale to find out!