Doctor Who: Adventures of Henrietta Street — Lawrence Miles

At the outer reaches of the universe, where human consciousness cannot reach, time goes "soft", allowing mankind to meets its own animal and subconscious limitations in the form of the brutal baboon-like Beast. In London, and all major cities of the Napoleonic era, covens of witches are using ancient techniques to attain time-consciousness. Perceiving time in a new way, they call on the Beast.