Lisa Thompson returns to the world of The Goldfish Boy in her new story.

Melody Bird has discovered an old, abandoned building on the edge of town...It's a dark, creepy place, but she can't resist its pull. When she goes to explore, she finds a boy hiding out there. Hal tells Melodythat he is a spy-in-training, using the house as a base for his undercover surveillance of a nearby suspected criminal. He's verysecretive about the details, but Melody trusts him and starts bringing him blankets and sneaking him food. She confides in herfriends Matthew and Jake about Hal — they immediately question the likelihood of a twelve-year-old spy and decide to turn thetables and spy on him, to work out what he's really up to...This extraordinary companion to The Goldfish Boy is a mystery with a sensitive story about mental health at its core.