What if there was a library hidden deep beneath the sea? When Kai discovers a glowing brass helmet on the beach, he?s swept into a magical underwater world where stories drift down as bubbles. There, he meets Octavia ? a wise octopus librarian ? and learns of a terrible problem: the stories are vanishing! With courage in his heart, Kai sets out on a daring adventure to save the Library Under the Waves from a shadowy eel who wants to keep all the tales for himself. Along the way, Kai discovers the true magic of friendship, kindness, and the power of sharing stories with others.