In this epic conclusion to the Underland Chronicles II trilogy, Gregor rallies his friends and allies together for one last showdown against Flavius and Operation Claw as the fate of the Underland hangs in the balance. With the threat of internal turmoil also on the horizon, not everyone will return home alive from the most titanic and bitter struggle in the Underland's history…

Gregor and Luxa reflect on the significance of Christmas- in a world devoid of hope and enveloped in darkness, is Christmas even more necessary, or is it merely a cheap celebration?