The Ministry of Ghosts (4)

Pressured by the stern Minister Beeston from the Department of Economies, the Ministry of Ghosts has been given three months to prove the existence or non-existence of ghosts, or else it will be shut down As it seems that children are particularly magnetic to ghosts and supernatural beings, Thruppence and Tim are added to their ghost-catching team. And although neither of them are scared by talk of ghosts or monsters, they couldn't have imagined the truth behind what they will find.