Across the worlds of Shadow, Corwin, Prince of blood royal, heir to the throne of Amber, gathers his forces for an assault that will yield up to him the crown that is rightfully his. But, a growing darkness of his own doing threatens Corwin's plans, an evil that stretches to the heart of the perfect kingdom itself where the demonic forces of Chaos mass to annihilate Amber and all who would rule there.

Returning to Shadow Earth to investigate a threat against his life, Corwin discovers that the Jewel of Judgment has been stolen by his traitorous brother, Brand, who plans to use the enigmatic gem to reshape the universe.

Corwin finds his world dissolving around him when his father Oberon, disguised as Corwin's friend, steals the Jewel of Judgment so that he may defeat the evil Brand.

Amber is the one real world, of which all others including our own Earth are but Shadows. Amber burns in Corwin's blood. Exiled on Shadow Earth for centuries, the prince is about to return to Amber to make a mad and desperate rush upon the throne.

Trumps of Doom is the sixth book of The Chronicles of Amber; an epic fantasy series written by six-time Hugo Award winning and three-time Nebula Award winning author Roger Zelazny.