All's quiet where Hell remains.

Months after the sundering that nearly collapsed our world into the demon plane, the city of Fortune has become unnervingly normal. Rifts no longer open. Fiends no longer cross over. The few that remain are captives, including their king: a mammoth horned beast known as "the dreadnought."

The city is far too calm, as if waiting for a terrible shoe to drop.

The only Hell left lives inside Adrian Porter's dreams, stirred by the nearby dreadnought. Each night, Adrian sees his captured girlfriend Laurel tortured in flame. For once, his brother Ray is the sensible one. As Adrian battles guilt and regret, life must go on.

But Adrian's dreams aren't just dreams. They're messages: Laurel calling from her infernal prison. The planes have begun to shift again, and the military fears an attack as the next gambit in humanity's longest con takes shape.

Desperate to uncover the truth, Earthside forces recruit Adrian and Ray to lead a covert expedition into Hell itself. But what awaits them on the other side is a twisted reflection of their own world: plots and schemes, a resistance, a tyrannical leader in a war for control. With each revelation, the true scope of the fiends' plan comes into focus ... and Adrian realizes the only way to ensure humanity's survival may be to make an unthinkable sacrifice.

In this epic tale of honor, obsession, and the blurred lines between good and evil, the Porter brothers must decide how far they're willing to go to save both worlds from annihilation. Brace yourself for a mind-bending journey where nothing is as it seems ? and the only certainty is that when the final battle begins, existence itself will tremble.