[1][2] The book centers on Maddy Smith, and her twin sister, Maggie Rede, both on opposing sides of a war between the new gods and the old, who must both face powerful forces in order to save everything they hold dear.

After the destruction of the Order, the surviving gods, having rescued their friends from the Black Fortress of Netherworld, have regrouped in the village of Malbry.

But a prophecy, coupled with the appearance of unnatural creatures in the Middle Worlds, reveal a breach in Chaos, which may lead to another Apocalypse.

Tanja Jennings of School Librarian magazine said Runelight had "a Tolkienesque structure of maps and ancient runes".

[7] Angela Youngman of the Monsters and Critics online magazine wrote that while the book was "not an easy read ... it is worth persevering".