The Shield of Ebdyrza — Erin Manning

Sam Oldfield is a powerful Enchanter in one world and an ordinary seventh-grader in another. He wants to get back to the magic world of Ebdyrza to stop the evil Paragons from taking over. But he needs time to learn to fight such deadly foes if he hopes to defeat them. When evil Enchanters from Ebdyrza show up in Sam's ordinary world to bring the fight to Sam, he isn't prepared for the lengths they'll go to get what they want. To draw his enemies away from Fairview, Sam must cross the Divide into Ebdyrza again and face this final battle, ready or not.