Scholastic's bestselling Old Lady is starring in a brand-new adventure series that will make you laugh AND learn! In this new spin-off, the Old Lady turns into an Old Mermaid, travels down into the ocean, and swallows a shark . . . and a squid, and a fish, and an eel, and a crab, and a sea star, and a clam . . . Why? Well, it was fun to cram her mouth with a clam! Two new characters lead the reader through this hilarious adventure while exchanging some awesome facts about the creatures down under that's perfect for this age. With expanded sea creature back matter and a search-and-find game at the end, this Old Mermaid is making quite a splash!