Auzou Book for seraphim, the prince of dolphins

Séraphin is the son of the dolphin chief and because he is very fast, he takes advantage of this to annoy all the residents of the lagoon: Théo the tuna, Molly the jellyfish, and even Madeleine the whale! As a result, he is not very popular. One day, while he was still scaring Théo, he gets his fin stuck in the porthole of a wreck. He is trapped! How will he manage to get out on his own?