Elven Star (The Death Gate Cycle, #2)

Elven Star is a fantasy novel by American writers Margaret Weis and Tracy Hickman, the second book in The Death Gate Cycle series. It was released in 1990.
The book covers the reconnaissance of Pryan, by Haplo at the behest of the Lord of the Nexus. Pryan is one of the four elemental worlds in the universe of the series, created by the sundering of the Earth.