Will Gunther might not be the smartest kid in 6B, but he knows his friend Hunter's textbook shouldn't be glowing. Now a stranger in a cloak is following them, and Will’s smartphone has developed an... unusual personality. And then there's Hunter -- who suddenly has the ability to control machines??? Something sinister is happening in the halls of Fairview Junior Prep, and things are only getting stranger. Soon there are monsters in the locker room, zombies shooting fireballs, and portals opening to other dimensions. Who is the mysterious Technomancer? Can Will and his friends solve the mystery in time? Or will they suffer a fate worse than detention? A rollicking adventure in the tradition of John Bellairs and classic clubhouse flicks like "The Goonies" and "The Monster Squad," TEXTBOOK OF THE TECHNOMANCER introduces young readers to Will Gunther, Hunter Elfrank, Diego Marquez, David Skragg... and a whole mess of trouble.