Táto séria zavedie mladých čitateľov do sveta, kde ich škola ožíva a stáva sa zlou entitou. Hlavní hrdinovia musia čeliť nebezpečenstvu a odhaliť tajomstvo, ktoré ich školu posadlo. Je to napínavé dobrodružstvo plné priateľstva, odvahy a riešenia záhad, ktoré udrží deti v napätí od prvej do poslednej strany. Príbehy sú ideálne pre fanúšikov strašidelných, no zároveň zábavných dobrodružstiev.
Sam Graves discovers that his elementary school is alive and plotting against the students, and,as hall monitor, it is his job to protect them--but he will need some help from his friends.
The story follows Sam and Antonio as they embark on a thrilling adventure to uncover the mystery behind their friend Lucy's disappearance into her locker. Their quest leads them through a series of clues that take them deep within the school's enigmatic and seemingly "alive" environment. Along the way, they face challenges that test their friendship and courage, all while accompanied by engaging illustrations that enhance the narrative.