Maisie Voyager used to explore the world with her parents.She now lives in a tall town house with Aunt Hetty, experiencing 'normal' life.But strangers start appearing, cryptic messages are left, and Aunt Hetty is kidnapped!Following a trail of clues that leads her to abandoned tin mines and a hunt for treasure, Maisie discovers that evil Dr Gallows and his gang have taken her family hostage and it's up to her to save them.Facing many challenges along the way including sinister strangers, cold dark tunnels and the colour purple, Maisie has a big adventure ahead of her with big decisions to make. Suitable for children aged 9+ this captivating novel is a great read and offers a positive heroine with a unique outlook on life that all children will relate to, especially those on the autism spectrum.