Each of the Empire's houses keeps secrets, even from themselves. For the bookish academics of the Sixth, every secret is a mystery, and every mystery is a puzzle to be solved or a paper to be published. Deep in the bowels of their house, one such secret is about to reveal itself. The study of the famed academic Donald Sex, sealed since the moment of his death, is about to open, and archivists are ready to dissect what he left behind. They are not ready for the macabre surprise that awaits them. Enter Palamedes Sextus and Camilla Hect, age thirteen.

The Emperor needs necromancers. The Ninth Necromancer needs a swordswoman. Gideon has a sword, some dirty magazines, and no more time for undead bullshit. Brought up by unfriendly, ossifying nuns, ancient retainers, and countless skeletons, Gideon is ready to abandon a life of servitude and an afterlife as a reanimated corpse. She packs up her sword, her shoes, and her dirty magazines, and prepares to launch her daring escape. But her childhood nemesis won't set her free without a service. Harrowhark Nonagesimus, Reverend Daughter of the Ninth House and bone witch extraordinaire, has been summoned into action. The Emperor has invited the heirs to each of his loyal Houses to a deadly trial of wits and skill. If Harrowhark succeeds she will become an immortal, all-powerful servant of the Resurrection, but no necromancer can ascend without their cavalier. Without Gideon's sword, Harrow will fail, and the Ninth House will die. Of course, some things are better left dead.

Harrow the Ninth, the sequel to Gideon the Ninth, turns a galaxy inside out as one necromancer struggles to survive the wreckage of herself aboard the Emperor's haunted space station. She answered the Emperor's call. She arrived with her arts, her wits, and her only friend. In victory, her world has turned to ash. After rocking the cosmos with her deathly debut, Tamsyn Muir continues the story of the penumbral Ninth House in Harrow the Ninth, a mind-twisting puzzle box of mystery, murder, magic, and mayhem. Nothing is as it seems in the halls of the Emperor, and the fate of the galaxy rests on one woman's shoulders. Harrowhark Nonagesimus, last necromancer of the Ninth House, has been drafted by her Emperor to fight an unwinnable war. Side-by-side with a detested rival, Harrow must perfect her skills and become an angel of undeath—but her health is failing, her sword makes her nauseous, and even her mind is threatening to betray her. Sealed in the gothic gloom of the Emperor's Mithraeum with three unfriendly teachers, hunted by the mad ghost of a murdered planet, Harrow must confront two unwelcome questions: is somebody trying to kill her? And if they succeeded, would the universe be better off?

Culled from Judith Deuteros’ secret report on Blood of Eden activities. This story was originally published in the trade paperback edition of Harrow the Ninth but is now available as a published, single story, by Tordotcom.

Her city is under siege. The zombies are coming back. And all Nona wants is a birthday party. In many ways, Nona is like other people. She lives with her family, has a job at her local school, and loves walks on the beach and meeting new dogs. But Nona's not like other people. Six months ago she woke up in a stranger's body, and she's afraid she might have to give it back. The whole city is falling to pieces. A monstrous blue sphere hangs on the horizon, ready to tear the planet apart. Blood of Eden forces have surrounded the last Cohort facility and wait for the Emperor Undying to come calling. Their leaders want Nona to be the weapon that will save them from the Nine Houses. Nona would prefer to live an ordinary life with the people she loves, with Pyrrha and Camilla and Palamedes, but she also knows that nothing lasts forever. And each night, Nona dreams of a woman with a skull-painted face...

Featuring Ianthe Tridentarius and Palamedes Sextus, this story was originally published in the trade paperback edition of Nona the Ninth.

The Locked Tomb series—Gideon the Ninth, Harrow the Ninth, Nona the Ninth, and Alecto the Ninth—is an epic science fantasy that blends necromantic theory and thrilling swordplay with a wicked, sacrilegious sense of humor; a modern mix of Dune, Riddick, and Gormenghast.