This comical and heartfelt picture book is a winning celebration of invention, creativity, and friendship. With gorgeous underwater scenes and a crowd-pleasing tale, this is one little mermaid who is here to make a splash! New York Times bestselling author Kelly DiPucchio and illustrator Raissa Figueroa would like to introduce Oona—the big wide sea’s littlest mischief-maker.   Oona and her best friend Otto love to search for treasure…and often find trouble instead. Messy tr