Daria Cerchi

A mysterious old friend of Grandpa Frankenstein (he's a vampire) shows up one night on the doorstep of Cacklefur Castle. His ancient castle has been infested by strange and troublesome monsters and ghosts, and he's afraid he'll have to move out because of them.

It's the grand opening of Traps new superstore, but nothing is working. The lights won't turn on, the doors won't open, and the loudspeaker is broken. Geronimo must figure out who is trying to sabotage the grand opening.

"My sister Thea and my cousin Trap were not getting along! When Grandfather found them arguing over who would get to join me on a trip to Brazil, he forced us all to go together. My friend Isabela needed my help finding a mysterious emerald. Could Trap and Thea stop shouting their snouts off long enough to help find the stone?" -- Back cover.