Nelly and her dog London spend autumn break with her uncle Hannibal, but she soon she notices that he doesn't live a quiet life. Her uncle is a Monster Agent, and Nelly gets dragged in to an adventure filled with ghosts, vampires and werewolves.
Nelly and her dog London spend autumn break with her uncle Hannibal, but she soon she notices that he doesn't live a quiet life. Her uncle is a Monster Agent, and Nelly gets dragged in to an adventure filled with ghosts, vampires and werewolves.
