With more than 10 million books sold, My Weird School really gets kids reading! In this first book in the hilarious new My Weirdest School series, part of the internationally bestselling My Weird School series, A.J.'s third-grade teacher, Mr. Granite, is retiring after a million hundred years. It turns out the new teacher, Mr. Cooper, is even weirder than Mr. Granite! One day he's Rat Man and he teaches about rodents. The next day he's Lava Man and he teaches about volcanoes. But what happens when a real superhero is needed? Will Mr. Cooper protect the school from evil, or just embarrass it to death? Perfect for reluctant readers and word lovers alike, Dan Gutman's hugely popular My Weird School series has something for everyone. Don't miss the hilarious adventures of A.J. and the gang.