The Candy Shop War by Brandon Mull

The Candy Shop War by Brandon Mull is an exciting middle grade story about a group of friends who find themselves caught between warring magicians who are looking for a magical device in the kids' hometown of Coleson.

Nate, Pigeon, Summer, and Trevor, are three friends who at first think that Mrs. White, the owner of The Sweet Tooth and Candy Shoppe is a nice old lady who happens to have magical candy that can grant them temporary powers. But as they run errands for her, the errands become more and more sinister until the kids realize they've got to break their ties with Mrs. White before it's too late. But now that she's cast a spell over most of the town with her magical white fudge, who can the kids turn to? Will Mr. Stot, another magician, help them, or is he as bad as Mrs. White? And who is the strange man in the fedora going through town? Is he friend or foe? And can the kids escape the clutches of Mrs. White before it's too late?