Invisible Max by Joe Mosher

It was all fun and games, until lightning struck the lasagna. When a prank gets out of hand and wrecks the school cafeteria, Hunter Maximus (a.k.a. Invisible Max) finds himself in big trouble. His classmates are upset with him, he has to serve a month of detention, and he's not allowed to use his invisibility super-power. Then he overhears a secret plot to destroy Red Cloak Island. Or does he? Even his friends think it's just another prank. How can he win back their trust and prove the threat is real, without breaking more rules and getting in even more trouble? And even if he can prove it, is it already too late to stop it from happening?