A trip to Coney Island to pick up trash goes sideways when Effie and Garance learn that there is a missing...mermaid?! Every time Effie thinks she finally has this magic life down, something new pops up! But this time, with the help of Garance, some talkative seagulls, and a rather helpful turtle...Effie is going to save the day and find this mermaid!
Effie is about to discover that SMORE MAGIC comes with SMORE PROBLEMS when she finds herself stuck at a summer camp for witches, Surviving without her friends would be hard enough, but when Effie's hands begin glowing GREEN with new powers, the other campers start seeing RED. It turns out that when you're a witch, life outside Brooklyn is pretty weird too!