The Wanderer (in the US) or The Sultan's Renegade (in the UK) is a 1949 historical novel by Mika Waltari. It is a sequel to The Adventurer, which tells of the adventures of a young Finnish man, Mikael Karvajalka, in 16th-century Europe. The Wanderer tells the story of how Mikael converts from Christianity to Islam and rises to a high position in the court of Suleiman the Magnificent. Many historical events are recounted in the book, but Mikael's involvement in them is fictitious. Source: Wikipedia (en)