The power within

"Darren, Fiona, Mack, and Gabriella are Changers, a magical line of shapeshifters that can transform into mythological creatures, from werewolves and selkies to lightning birds and spirit foxes. They still have a lot to learn when it comes to their powers, but the kids are finally showing some progress fighting as a team, and the First Four think they're ready for a new mission. Young Changers in the area have been mysteriously disappearing, and it's up to the kids to figure out who-or what-is behind it. But ever since his parents announced their divorce, Darren has been having a rough time coping-and his lightning abilities are going haywire"--Provided by publisher.