The Curl Girls: Return of Strella Straightener

In book two of the Curl Girls series, an old nemesis is on the loose, and she's ready for revenge.

Olivia, Charlie, Karmen, and Dylan had plans for a relaxing summer of playing volleyball, reading books, and enjoying the beach, but when Stella Straightener strikes with her magic flat iron and gooey concoctions, the Curl Girls know they must spring into action. Can they work together and save all of the curls before it's too late?