Philip Martin wrote the Doctor Who stories Vengeance on Varos and Mindwarp, which he novelised for the Target range. He also wrote the Find Your Fate book Invasion of the Ormazoids and the Target Missing Episodes novel Mission to Magnus, later to be made into a Big Finish audio story as part of The Lost Stories range. His other contributions to the Big Finish range are the Eighth Doctor story The Creed of the Kromon and the Sixth Doctor story Antidote to Oblivion.