Adam Rubenstein and Sunil Rao have been reluctant partners since their Uzbekistan days. Adam is a seemingly unflappable American Intelligence officer and Rao is an ex-MI6 agent, an addict and rudderless pleasure hound, with the uncanny ability to discern the truth of things—about everyone and everything other than Adam. When an American diner turns up in a foggy field in the UK after a mysterious death, Adam and Rao are called in to investigate, setting into motion the most dangerous and otherworldly mission of their lives.

In a surreal, action-packed quest that takes Adam and Rao from secret laboratories in Colorado, to a luxury lodge in Aspen, to the remote Nevada desert, the pair begins to uncover how and why people’s fondest memories are being weaponized against them by a spooky, ever-shifting substance called Prophet. As the unlikely twosome battles this strange new reality, Prophet’s victims’ memories are materializing in increasingly bizarre forms: favorite games, beloved pets, fairground rides, each more malevolent than the next. Prophet is like no enemy Adam and Rao – or the world – have ever come up against.

A tension-shot odd-couple romance, an unflinching send-up of corporate corruption, and a genre-bending tour de force, Prophet is a triumph of storytelling by a new writing duo with a thrilling future.

Praise for Prophet:

A Best Book of Summer from Literary Hub 
A Most Anticipated Book of 2023 from BookPage

“I had heard Prophet (accurately) described as a genre mash-up, blending the best of techno-noir, dystopian sci-fi, and espionage procedural (with a dash of queer romance). And while it is all those things, at its heart Helen Macdonald and Sin Blaché’s tightly wound (yet somehow tender?) mystery-sci-fi-thriller is a philosophical novel… What is life without mystery? And at what point does nostalgia grow so strong it derails our lives?”—Literary Hub

“Shrewdly imagined, sharply crafted, witty, chilling, psychologically lush, grotesque, and romantic.”—Booklist

“Unlike many sci-fi titles, the focus of the book revolves around the two main characters rather than on action sequences or futuristic technologies. This allows for plenty of mystery and drama as the story shifts between the present and the past, intertwining the two men and a substance that is making time essentially irrelevant.”—Library Journal 

“Fabulous… Present day science fiction that feels like the best sort of spy novel with real people you can care about. And it’s a page-turner. So good.”—Neil Gaiman, author of American Gods

“Prophet is a crackling, shape-shifting romp with big ideas and a bigger heart. Blaché and Macdonald take a no-holds-barred approach to manifesting the ways in which individual desires are exploited by the systems we live under, and ask the necessary question of whether escape from that cycle is possible. This is a display of sheer inventiveness, and a delight.”—C Pam Zhang, author of How Much of These Hills is Gold

“Absorbing, fast-paced and febrile, Prophet takes you through the world at an angle, exposing cracks in the reality we think we inhabit. An exhilarating and surprisingly tender trip.”—G. Willow Wilson, author of Alif the Unseen

“Sin Blaché and Helen Macdonald have turned nostalgia — ‘the trash of hearts’ — into a world and a trap. Prophet promises to bring back everything you lost and now yearn for. Is it a drug? Or is it a new state of matter? Whatever it is, it’s proper science fiction — self-aware, funny, ruthlessly propulsive, full of invention, parodic yet perfectly serious about its underlying issues with contemporary retro culture, and ending with a complex, emotionally satisfying extension of the personal into the sublime. I loved it.”—M. John Harrison, author of Light

“Prophet is a wildly fun, inventive, funny, and terrifying book, with a superb mystery that gets ever more compelling and weird and, horrifyingly, familiar. This book finds the nightmare in the comforting lies we tell ourselves about our pasts, and how they inform our present.”—Phil Klay, author of Uncertain Ground

“A hyperkinetic headrush of a novel that proves its organic bona fides by getting you drunk with ideas before casually and cataclysmically breaking your heart.”— Paraic O’Donnell, author of The House on Vesper Sands