Alone and newly arrived in New Fiddleham, 1892, Abigail Rook finds work as the assistant to R. F. Jackaby, an investigator of the unexplained with the ability to see supernatural beings. On her first day, Abigail finds herself in the midst of a thrilling case: A serial killer is on the loose in New Fiddleham. The police are convinced it’s an ordinary villain, but Jackaby is certain the foul deeds are the work of the kind of creature whose very existence the local police--with the exception of a handsome young detective named Charlie Cane--seem adamant to deny.

“Like [Sherlock] Holmes crossed with Buffy the Vampire Slayer.” —Chicago Tribune

“Toss together an alternate 19th-century New England city, a strong tradition of Sherlockian pastiche, and one seriously ugly hat, and this lighthearted and assured debut emerges, all action and quirk.” —Publishers Weekly, starred review

“A riveting mash-up of mystery and folklore, with vivid details and striking turns of phrase. And Jackaby is an irresistible character.” —The Horn Book Magazine

“Mystery, adventure, and fantasy readers will all enjoy this engrossing tale and come away hoping this is not the last they will hear of Abigail and Jackaby.” —VOYA

“We honestly couldn’t put it down.” —Nerdist.com

‧ A Top Ten Fall ’14 Kids’ Indie Next Pick
‧ A 2014 Kirkus Reviews Best Book for Young Adults
‧ A 2015 YALSA Top Ten Best Fiction for Young Adults Title
‧ A 2015 Pacific Northwest Book Award Winner
‧ A 2015–2016 Georgia Peach Award Nominee
‧ A Junior Library Guild Selection