Bøger i Mysterious Monsters serien

"It is getting harder to hide the monsters in "Motel Mattigan" from their dad, but the Mattigan kids are eager to collect a new creature, but sorting out the truth will force them to look inside themselves"--

The Mattigan siblings convince their dad to go on a mission to find a werewolf as they also try to help the monsters hiding in their basement uncover the truth about their pasts.

The Mattigan siblings finally solve the mystery of their monsters' history, but discover there is an evil monster that is out to get them.