War of the Twins is a 1986 fantasy novel by American writers Margaret Weis and Tracy Hickman.

The story sees Raistlin, Caramon, and Crysania arrive in the Tower of High Sorcery at Palanthas.

Caramon, before bent on stopping Raistlin's quest for godhood, must now aid him to return to his own time period.

Having been bribed with the Globe of Present Time Passing, created by Raistlin, Astinus reveals that it is in the magical fortress of Zhaman, located in dwarven lands.

Tasslehoff encounters Takhisis, the Queen of Darkness, who tells him how he has altered time and possibly allowed her to take over the world.

Crysania flees when Raistlin rejects her love and makes plans to bring word of the true gods to the people, 200 years before Goldmoon would during the War of the Lance.

Raistlin appears and rescues Tas, but kills Gnimsh, presumably to correct Fistandantilus's mistake of allowing the gnome to be at the Portal when he tried to enter.

The other novels in this series are: War of the Twins reached 12 on The New York Times best seller list on July 20, 1986.