I trapped a dolphin but it really wasn’t my fault

Four year old Abbie Rose has a magic suitcase. In this book, she goes on a wonderful adventure to the ocean with her best friend Billy. In the ocean, Abbie Rose and Billy see many different types of fishes and even meet a dolphin. Abbie Rose accidentally traps Billy and the dolphin in a fishing net but she manages to free it with the help of another new friend, the swordfish. Finally the dolphin is reunited with his family.