When Romulan renegades steal a Gateway Device and tear open a rift in the fabric of existence, the multiverse itself trembles. Admiral Janet Kirk, her sister Captain Tamera Kirk, and Commander Data pursue the fleet into “Other Space”—only to collide with realities where Star Trek is more than fiction.

On the far side of the rip, Captain Stephanie Dillion and her scout ship Defender are hurled into an unfamiliar plane, stranded with dead engines and desperate for a way home. Drawn into the chaos is Chief Aierowen Dickess of the Alliance Security Force, whose world now faces the threat of a Romulan empire reborn across dimensions.

Together, these unlikely allies must unravel the mystery of the rip, confront a fleet of warbirds, and prevent the collapse of every universe. But with time running out and loyalties tested, survival may demand sacrifices none of them are ready to make.

Three Queens and the Ace of Spades is a sweeping crossover of courage, family, and destiny—where legends meet, realities collide, and the fate of existence hangs in the balance.