The Fintastical Tales of Mari A. Fisch #2: Dare to Care

"Mari A. Fisch, mermaid princess and 256th daughter of King Triton, the ruler of the seas, is sent on land to learn why humans behave the weird ways that they do. When her best friend Stevie dares Mari to ride a super-scary roller coaster, Mari learns that sometimes you have to be brave to have fun. But when Stevie's dares start going too far, Mari must choose between betraying what she believes in or letting down her only friend"--