Dan Gutman 
My Weirder School #2: Mr. Harrison Is Embarrassin‘ 

With more than 30 million books sold, the My Weird School series really gets kids reading!In this second book in the My Weirder School series, everything seems to be on the fritz, including the teachers! Luckily, Mr. Harrison, the tech guy at Ella Mentry School, can fix anything: computers, phones, pencil sharpeners. He can also build anything, like a solar-powered umbrella! But when the power goes out in the school, everyone is yelling and screaming and freaking out in the dark. Can Mr. Harrison save the day before theres total chaos?Perfect for reluctant readers and word lovers alike, Dan Gutmans hugely popular My Weird School series has something for everyone. Dont miss the hilarious adventures of A.J. and the gang.