Maddy is picked on by bullies at her new school and terrified by ghosts in the old house her family has moved to ? but she soon becomes friends with Clarissa, who slept in that same room and used the same mirror more than 100 years earlier. Then Maddy's baby brother nearly dies of whooping cough, and Clarissa discovers that her poisonous Aunt Lily is even more evil than she seems. The two girls have to use all their intelligence and verve to fight against Aunt Lily's plots, each in her own time, with help from Clarissa's ghostly brother Bertie... but will they succeed? An enthralling, original debut middle-grade novel by award-winning poet and short-story writer Jenny Blackford.