Cat's Cradle: Witch Mark is an original novel written by Andrew Hunt and based on the long-running British science fiction television series Doctor Who. It features the Seventh Doctor and Ace. Synopsis The TARDIS's link with the Eye of Harmony is becoming ever more tenuous and is in urgent need of repair. But the time machine takes the Doctor and Ace to a village in rural Wales, and a gateway to another world. In this darkening and doomed other world (known to its inhabitants as Tír na nÓg), the besieged humans defend the walls of their citadel Dinorben against mythical beasts and demons. Plot Strange things are happening in the Welsh village of Llanfer Ceirog. The police are investigating a coach crash which killed the driver and all passengers. Only the driver could be identified: Selwyn Hughes, brother of the coach's owner, Emrys Hughes, and resident of Llanfer Ceirog. Stuart Taylor, a veterinarian, tends to a horse with a strange wound in the middle of its forehead, and discovers a tapered horn nearby. When the Doctor and Ace arrive, they are greeted warmly until Ace is shot at by Emrys Hughes. The Doctor is intrigued to hear a legend of a village called Dinorben that vanished hundreds of years ago. Everything seems to be centered on the mysterious stone circle located on Emrys's land. The Doctor and Ace investigate the circle, only to find themselves transported to another world. The city of Dinorben has become a desperate refuge of humanity. The head of the ruling council, Dryfid, explains that the sun mysteriously disappeared some time ago, and that they are beset by demons. The other people of the world, including unicorns, centaurs, trolls, and short, furry-footed creatures called the Sidhe, have become hostile after learning that the humans have a means of escaping their doomed world: the stone circle gateway to Earth. The Doctor and Ace are sent on a quest to find the living god Goibhnie and persuade him to restore his favor. Back in Wales, two American hitchhikers stumble upon an injured centaur. Unable to believe what they've found, they seek help from the authorities. Unfortunately, they find the local Constable Hughes, who douses the centaur in gasoline and incinerates the corpse. The hitchhikers, Jack and David, manage to contact Inspector Stevens of Scotland Yard's Paranormal Investigations Division. Stevens is in the area investigating the mysterious coach, and