The Battle of Evernight is a fantasy novel written by Australian author Cecilia Dart-Thornton, published in 2003 by Warner Aspect.

The war, detailed in the previous books in the trilogy, continues between the immortals High King Angavar and Prince Morragan.

Unable to return to the Fair Realm until they find the last remaining gate, the protagonist, Tahquil, along with her friends Caitri and Viviana, vow to find the gate and return to their homeland.

Publishers Weekly called this novel a "strong conclusion" to the trilogy.

"[2] Kirkus Reviews also thought it would appeal to the author's readers: "Beneath the padding, overblown prose, and interminable description, a genuinely moving tragedy sometimes glimmers through.