Maybe a mermaid

"Eleven-year-old Anthoni Gillis is not the kind of kid who believes in fairies, unicorns, or even the word 'maybe.' She's more of a comic-books girl. So when her mom brings her to Thunder Lake for a summer at the Showboat Resort, she doesn't believe the local rumors about the Boulay Mermaid. Anthoni has bigger fish to fry. She's always wanted a True Blue Friend. But it's been hard to find one, since for the past five years she's been bouncing from town to town, helping her mother sell Beauty & the Bee cosmetic products to keep them both afloat. This summer will be different, though. Anthoni has a plan--a foolproof checklist for making lifelong friends"--Provided by publisher.