In an alternate 1914 Europe, fifteen-year-old Austrian Prince Alek, on the run from the Clanker Powers who are attempting to take over the globe using mechanical machinery, forms an uneasy alliance with Deryn who, disguised as a boy to join the British Air Service, is learning to fly genetically engineered beasts.

In the mid-21st century major world cities are controlled by a formidable security force and clairvoyant underworld cell member Paige commits acts of psychic treason before being captured by an otherworldly race that would make her a part of their supernatural army.

"Sarah Brandt is shattered when she learns that a woman has inquired at Hope's Daughters Mission for Catherine, the abandoned child she has taken as her daughter. The woman claims she was Catherine's nursemaid, now acting on behalf of the girl's mother to reunite them. Unwilling to simply hand Catherine over to a complete stranger, Sarah asks Malloy to investigate. But when he goes to interview the woman at her tenement in Chelsea, he finds she has...

"With the great Traction City of London completely destroyed, Tom Natsworthy and Hester Shaw travel across the world, trading with other airships and adventuring on the exciting and exotic routes of the Bird Roads. When their little scrapyard aircraft, the Jenny Haniver, is pursued by rocket-firing gunships, the ice city of Anchorage offers them sanctuary. But as Tom and Hester soon discover, it is no safe refuge. Devastated by plague in recent years...

"Nebula, Locus, and Alex Award-winner P. Djèlí Clark returns to his popular alternate Cairo universe for his fantasy novel debut, A Master of Djinn Cairo, 1912: Though Fatma el-Sha'arawi is the youngest woman working for the Ministry of Alchemy, Enchantments and Supernatural Entities, she's certainly not a rookie, especially after preventing the destruction of the universe last summer. So when someone murders a secret brotherhood dedicated to one...

"Late one night in April 1958, a filing assistant at Miss Brickett's receives a letter of warning, detailing a name, a time, and a place. She goes to investigate but finds the room empty. At the stroke of midnight, she is murdered by a killer she can't see--her death the only sign she wasn't alone. It becomes chillingly clear that the person responsible must also work for Miss Brickett's, making everyone a suspect. Marion Lane, a first-year Inquirer-in-training,...

Brendan Doyle, a specialist in the work of the early-nineteenth century poet William Ashbless, reluctantly accepts an invitation from a millionaire to act as a guide to time-travelling tourists. But while attending a lecture given by Samuel Taylor Coleridge in 1810, he becomes marooned in Regency London, where dark and dangerous forces know about the gates in time. Caught up in the intrigue between rival bands of beggars, pursued by Egyptian sorcerers,...

In early twentieth-century New York, Sacha Kessler's ability to see witches earns him an apprenticeship to the police department's star Inquisitor, Maximillian Wolf, to help stop magical crime and, with fellow apprentice Lily Astral, Sacha investigates who is trying to kill Thomas Edison, whose mechanical witch detector that could unleash the worst witch-hunt in American history.

In her alternate England of 1851, while taking her friend Sidheag by train to her werewolf pack in Scotland, sixteen-year-old Sophronia uncovers a plot that threatens to dissolve all of London into chaos and must decide where her loyalties lie once and for all.

It was only a few weeks ago that the Biedermann twins, Tess and Theo, along with their friend Jaime Cruz, followed the secrets of the Morningstarrs' cipher further than anyone had in its century-and-a-half history -- and destroyed their beloved home in the process. But the Old York Cipher still isn't solved. The demolition of 354 W. 73rd Street only revealed the next clue in the greatest mystery of the modern world, and if Tess, Theo, and Jaime want...