Doctor Who Grimm Reality by Simon Bucher-Jones

In the 2001 novel Grimm Reality, authors Simon Bucher-Jones and Kelly Hale transport the Doctor, Fitz, and Anji to a world governed by the logic of fairy tales. The planet is influenced by a quantum white hole that ejects mysterious debris, drawing the attention of both the time travelers and a corporate trader mission led by the ambitious Christina. As the characters navigate surreal encounters with giants, witches, and enchanted animals, they discover that the world is a living entity being destabilized by the traders' industrial exploitation. The Doctor must mediate between the symbiotic planetary mind and the outsiders to prevent a total collapse of reality. Ultimately, the narrative explores the collision of science and folklore, culminating in a resolution where the characters must use wishes and story motifs to restore balance.