From BookTok sensation and NYT bestselling author Rachel Gillig, comes the next big romantasy phenomenon: a gothic, mist-cloaked tale of a prophetess who is forced beyond the safety of her cloister on an impossible quest to defeat the gods with the one knight whose future is beyond her sight.

Sybil Delling has spent nine years dreaming of having no dreams at all. Like the other foundling girls who traded a decade of service for a home in the great cathedral, Sybil is a Diviner. In her dreams she receives visions from seven unearthly figures known as Omens. From them, she can predict terrible things before they occur, and lords and common folk alike travel across the kingdom of Traum's windswept moors to learn their futures by her dreams.

Just as she and her sister Diviners near the end of their service, a mysterious knight arrives at the cathedral. Rude, heretical, and devilishly handsome, the knight Rodrick has no respect for Sybil's visions. But when Sybil's fellow Diviners begin to vanish one by one, she has no choice but to seek his help in finding them. For the world outside the cathedral's cloister is wrought with peril. Only the gods have the answers she is seeking, and as much as she'd rather avoid Rodrick's dark eyes and sharp tongue, only a heretic can defeat a god.

Praise for One Dark Window:

'An enchanting tale with sharp claws and teeth - Gillig's prose will pull you in and won't let you sleep. Pulse-pounding, darkly whimsical and aglow with treacherous magic, One Dark Window is everything I love in fantasy and more' Allison Saft, author of A Far Wilder Magic

'A beautifully dark fairy tale of blood, rage and bitter choice, that whisked me away to mist-wreathed woods ripe with romance and menace' Davinia Evans, author of Notorious Sorcerer

'An evocative tale of romance, mystery and alluring monsters, told in beautifully lush prose' Lyndall Clipstone, author of Lakesedge

'Steeped in brooding romance, twisted magic and nail-biting intrigue, One Dark Window snares readers in its deliciously dark spell and leaves them desperate for more. I couldn't put it down' Kat Delacorte, author of With Fire in their Blood

'The steamy romance that emerges between Elspeth and Ravyn delights' Publishers Weekly