The theme of this week's programme is reincarnation. Phil Rickman talks to authors whose characters play a part in the perpetual cycle of birth and rebirth, and occasionally connect with their modern day counterparts. Barbara Erskine describes her own experiences of rebirth as she talks about her latest novel The Warrior's Princess, James Long discusses the historical expedient of creating a character continually being reborn in the same locality in his recently republished Ferney, and Dan Cruickshank talks about his new book Adventures in Architecture.