The Obsidian Mountain Trilogy · Book 3
When Darkness Falls
- Published
- 1 January 2006
- Pages
- 608
- ISBN-13
- 9780765341433
- Type
- novel
Buy on AmazonAll The Obsidian Mountain Trilogy books in order

About this book
When Darkness Falls closed Mercedes Lackey and James Mallory's Obsidian Mountain Trilogy two years after To Light a Candle, in 2006, at 608 pages, escalating Kellen Tavadon and Idalia's investigation into a personal mystery into a full continent-spanning war against the long-imprisoned Demon army. It resolves the threat to both the Elven High Reaches and the human Borderlands first set up in The Outstretched Shadow, closing out the trilogy that opens the wider Obsidian Universe.
Its place in The Obsidian Mountain Trilogy
When Darkness Falls is book 3 in the The Obsidian Mountain Trilogy series. It follows To Light a Candle. See the full The Obsidian Mountain Trilogy reading order.
Co-written by Mercedes Lackey and James Mallory, this trilogy opens the Obsidian Universe: a high-fantasy world of Elven High Reaches, human Border cities, and an ancient magical barrier holding back a genocidal Demon army sealed away a thousand years earlier. The Outstretched Shadow introduces Kellen Tavadon, a mage's son whose talent for forbidden magic gets him exiled from his own city, and Idalia, the sister of a powerful mage who takes him in when no one else will. As the two investigate why the ancient…
Editions
- edition · unknown publisher · — · ISBN 9780765341433