The substitute criminal

the long version

"Jared and Marcus aren't like other eleven-year-olds... they're Revengers. They fix problems and they're awesome at it. All their business needs is a bit more exposure. And they just so happen to have a deserving target: Mr. Shevchenko, an evil substitute teacher they have a long and uncomfortable history with. When Shev shows up handing out detentions like they're participation ribbons at a track meet and announcing he'll be their teacher for the foreseeable future, they have to act. After a few unsuccessful attempts, the boys have a plan that can't fail. A case of mistaken identity seems just the right flare to set their new business on fire."--Publisher.