Time of the twins / Weis, Margaret

Caramon travels back in time to the city of Istar before the Cataclysm to save the soul of Raistlin Majere, who is plotting to control the darkness.

Archmage Raislin wants to harness the power of darkness to establish himself as its ruler, but two people are determined to stop him--the cleric Crysiana and Raislin's twin brother, Caramon.