 The Obsidian Trilogy

The Obsidian Trilogy is a three-novel fantasy series, chronicling the journey of Kellen Tavadon in relation to the third war between the Light and the Endarkened, co-written by Mercedes Lackey and James Mallory.The series began with "The Outstretched Shadow", released in 2002, continued in 2004 with "To Light a Candle" and reached its conclusion in 2006 with "When Darkness Falls".