"A fast-paced flight of magic, mystery, and whimsy, whisking readers on an around-the-world adventure alongside a lovable cast of characters tasked with protecting the world's most valuable secret--and perhaps keeping a few secrets of their own." - Nikki Erlick, New York Times-bestselling author of The Measure and The Poppy Fields " The Society of Unknowable Objects is a dazzling, globe-trotting thriller with a spectacular dash of magic. Like Michael Crichton at his finest, but with fantasy. Brilliant stuff!" - Sunyi Dean, bestselling author of The Book Eaters "Vividly descriptive language, depictions of world travel, and fast-paced, suspenseful action involving powerful magic items, with a nod to book collectors, will entice fans of intricately plotted romantic fantasy." - Booklist (starred review) "The Society of Unknowable Objects utterly demolishes difficult second book syndrome. A thrilling, globe-spanning adventure that wrong footed me at every turn, and like The Book of Doors, features a truly memorable villain." - Adam Simcox, author of The Dying Squad "Entertaining . Brown's propulsive plot and plucky heroine keep the pages turning.

It's good fun." - Publishers Weekly "A stunning fever dream of a story that feels completely real--don't miss this fantastic thriller debut." - Lee Child, New York Times bestselling author, on The Book of Doors "Brown's debut is an immersive and enchanting story of friendship, defining one's future, and the mystery that life can hold. Fans of Alix E. Harrow will find this novel delightful." - Library Journal (starred review) on The Book of Doors "Those who love books about books and enjoy paranormal fantasy with a touch of romance will be enraptured." - Booklist (starred review) on The Book of Doors "Brown debuts with a riveting tale of adventure, magic, and the long process of grieving. With an endearingly quirky cast and a lightning quick pace, this is sure to suck readers in.

" - Publishers Weekly on The Book of Doors "A brilliant page-turner--a clever and beautiful novel about the power of books, and a tribute to those who champion them." - Sunyi Dean, bestselling author of The Book Eaters.