When Darkness Falls
A great working of Wild Magic and High Magic strikes at the heart of the Demon Queen’s plots, but the human city, the Golden City of the Bells, falls farther under her sway with each day that passes. And without the City’s High Magicians, the Wild Magicians, the Elven Army, and all their allies will surely fall before the onslaught of the Demon Queen’s malignant warriors.
But all hope is not lost. The Light’s young mages, tempered by war, grow ever more powerful. High Mage Cilarnen learns an ancient secret that can make him, for a brief, white-hot time, the greatest mage in the world – unless it kills him. Jermayan, the first Elf-Mage in centuries, has linked with the dragon Ancaladar and rediscovered the swift-as-thought powers of Elven magic, which can reshape mountains and summon lightning from clear skies.
Knight-Mage Kellen has molded his troops and the Unicorn Knights into a deadly fighting force. Soon the Elven King and his Commanders put Kellen’s magical gifts to their greatest test, in the final battle between the Elves, the humans, and the Demons.
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Mercedes Lackey
Mercedes Ritchie Lackey (born 1950) is an American writer of fantasy novels. Many of her novels and trilogies are interlinked and set in the world of Velgarth, mostly in and around the country of Valdemar. Her Valdemar novels form a complex tapestry of interaction between human and non-human protagonists with many different cultures and social mores.
Her other main world is one much like our own, but it includes clandestine populations of elves, mages, vampires, and other mythical beings. The Bedlam's Bard books describe a young man with the power to work magic through music; the SERRAted Edge books are about racecar driving elves; and the Diana Tregarde thrillers center on a Wiccan who combats evil.
The Obsidian Trilogy
The Obsidian Trilogy consists of three books. The current recommended reading order for the series is provided below.

