In The Phoenix Endangered, second in The Enduring Flame by Mercedes Lackey and James Mallory, Tiercel, a budding High Mage, and Harrier, a reluctant Knight-Mage, develop greater power--and learn of the evils of war when they see the devastation caused by the fanatical armies of the Wild Mage Bisochim.
The desert tribespeople led by young Shaiara flee Bisochim's evil, seeking a legendary oasis deep in the desert--a refuge that may hold the key to stopping Bisochim and preserving the Balance between Light and Darkness . . . or that may be the cause of Light's ultimate downfall.