Five years ago, Crown Prince Valentin lost his entire family and vanished into the dark. Now he returns for blood—but his hidden blade is Kilian, the ruthless godfather of the underground, bound to him by rabid, unhinged loyalty and obsession that borders on madness. Together they dismantle Conrad's empire piece by piece, only to learn that the Black Cross Council was the real hand behind the massacre—Conrad was just a puppet. They declare war on the shadow rulers, hack apart their global network, hunt down every conspirator, and settle every last blood debt. When the dust clears, Valentin reclaims his crown—and this time, he rules with Kilian's blazing, all-consuming love at his side.