Battle of the Best Friends

In this splashy new Mermaid Tale, a megapopular boy band is set to perform at an undersea celebration—but what if a mean girl keeps Shelly from joining in the fun? Echo, Shelly Siren’s best friend, is doing tail flips because she’s going to see the hottest boy band around—The Rays! It’s her classmate Pearl’s birthday, and the Rays are going to perform at her exclusive party. Troublemaker Pearl has invited just about everyone—everyone, that is, except Shelly! Shelly urges Echo to go anyway, but E