Test of the Twins is a 1986 fantasy novel by American writers Margaret Weis and Tracy Hickman. It is the third and final book in the Dragonlance Legends, which along with the Dragonlance Chronicles are considered the core Dragonlance novels. The novel appeared on The New York Times best seller list. Test of the Twins is also the name of a short story from 1984, the very first Dragonlance tale; it was reprinted in the 1987 collection The Magic of Krynn.