Underrunners

by Mary Mahy and Margaret Mahy

Published 30 April 1992
Tris and Winola find the underrunners, a vast network of tunnels, the ideal place to escape their unhappy lives and act out their fantasies, but the tunnels become a dangerous place when invaded by an unseen stranger.

Dangerous Spaces

by Margaret Mahy

Published 1 April 1991
Two cousins living in a house that is haunted are drawn at night into a dream world which threatens to overwhelm their real world.