The Stone in the Skull, the first volume in her new trilogy, takes readers over the dangerous mountain passes of the Steles of the Sky and south into the Lotus Kingdoms.

The Gage is a brass automaton created by a wizard of Messaline around the core of a human being. His wizard is long dead, and he works as a mercenary. He is carrying a message from a the most powerful sorcerer of Messaline to the Rajni of the Lotus Kingdom. With him is The Dead Man, a bitter survivor of the body guard of the deposed Uthman Caliphate, protecting the message and the Gage. They are friends, of a peculiar sort.

They are walking into a dynastic war between the rulers of the shattered bits of a once great Empire.

The magical adventure begun in The Bear and the Nightingale continues as brave Vasya, now a young woman, is forced to choose between marriage or life in a convent and instead flees her home—but soon finds herself called upon to help defend the city of Moscow when it comes under siege.

Orphaned and cast out as a witch by her village, Vasya’s options are few: resign herself to life in a convent, or allow her older sister to make her a match with a Moscovite prince. Both doom her to life in a tower, cut off from the vast world she longs to explore. So instead she chooses adventure, disguising herself as a boy and riding her horse into the woods. When a battle with some bandits who have been terrorizing the countryside earns her the admiration of the Grand Prince of Moscow, she must carefully guard the secret of her gender to remain in his good graces—even as she realizes his kingdom is under threat from mysterious forces only she will be able to stop.

Seventeen-year-old Alice and her mother have spent most of Alice’s life on the road, always a step ahead of the uncanny bad luck biting at their heels. But when Alice’s grandmother, the reclusive author of a cult-classic book of pitch-dark fairy tales, dies alone on her estate, the Hazel Wood, Alice learns how bad her luck can really get: her mother is stolen away―by a figure who claims to come from the Hinterland, the cruel supernatural world where her grandmother's stories are set. Alice's only lead is the message her mother left behind: “Stay away from the Hazel Wood.”

Alice has long steered clear of her grandmother’s cultish fans. But now she has no choice but to ally with classmate Ellery Finch, a Hinterland superfan who may have his own reasons for wanting to help her. To retrieve her mother, Alice must venture first to the Hazel Wood, then into the world where her grandmother's tales began―and where she might find out how her own story went so wrong.