School has just started up again in Oldmill Village, but that's not the only thing that's changing. A new tutor, Jeremy-Joth, has taken charge of the monsters living in the Barrymore home, and his strict rules have everyone on edge—including Zick! Meanwhile, Elena is feeling uneasy about the looming arrival of a new sibling, and a new adventure is just what she needs to distract her. Together, Zick, Elena, and Charlie Schuster set off to put Zick's powers as a young monster tamer to the test—and it could be their most dangerous quest yet! Filled with dark phantoms, monster-eating fish, and plenty of laughs, Monster Allergy, Vol. 4 is a must-read installment of the Monster Allergy series!