The Reintegrators

Welcome to Oakmont Academy. Study hard, make friends, and whatever you do, don't get lost in the Metaverse. Tormented by crippling panic attacks and desperate to find a way to help his catatonic father, Teddy Cartham is running out of options. When he receives an invitation to attend the elite academy where his father once taught, he believes his luck is changing. Until he uncovers a shocking secret-his new math teachers are Reintegrators, members of an ancient cult dedicated to exploring alternate universes.
With the help of his classmates and some unlikely allies, Teddy searches a maze of bizarre worlds for the key to his father's shattered mind. But deadly surprises lurk in the depths of the Metaverse.