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  • Published: 25 August 2026
  • ISBN: 9781628863352
  • Imprint: Sourcebooks Casablanca
  • Format: Paperback
  • Pages: 320
  • RRP: $24.99

The Dark in Her Veins




From a critically acclaimed, UK bestselling author comes a noir romantic fantasy set in a world in which sin is a fatal disease, and the rich hire the poor to carry out their basest instincts—until the forbidden romance between a sinner and a mysterious figure threatens to destroy everything.

From critically acclaimed, bestselling author M.K. Lobb comes a noir romantic fantasy set in a world in which sin is a fatal disease, and the rich hire the poor to carry out their basest instincts—until the forbidden romance between a sinner and a mysterious figure threatens to destroy everything.

Nothing is sacred for those willing to pay the price…

In Valestadt, everything has a price. Sin leaves its mark in the form of the Bloodrot, a slow-creeping disease that leads to madness, then death. The rich outsource their violence. The poor sell theirs and suffer the cost.

Talin Keller is a sinner. Employed by the holiest man in the city, the Prophet, she stains her hands so his can stay clean. But with her Bloodrot rapidly advancing, Talin knows her next job could be her last.

Then a new assignment puts Talin on a collision course with the Warden, a shadowy figure whose name is spoken like a warning. If she can get close, she can trade his life for her own freedom—and escape the death her sins have promised. That is, if she can stay steady on the knife's edge.

Because Talin is dangerously drawn to the Warden. He is sharp, cruel, and whatever blazes in him sparks against every dark part of her. If she isn't careful, her plans will burn.

As savior and sinner tangle, Talin uncovers a conspiracy tied to the past she thought dead. And in Valestadt, where sin is currency, she'll have to decide what she's willing to pay to survive.

  • Published: 25 August 2026
  • ISBN: 9781628863352
  • Imprint: Sourcebooks Casablanca
  • Format: Paperback
  • Pages: 320
  • RRP: $24.99

About the author

M.K. Lobb

M. K. LOBB is a fantasy writer with a love of all things dark— be it literature, humor, or general aesthetic. Her debut novel Seven Faceless Saints (Little, Brown) was a #1 Sunday Times bestseller, a Kids’ Indie Next Pick, and has been translated into seven languages. It was also shortlisted for the Barnes & Noble Children's & YA Book Awards. This is her adult debut. She lives in Ontario.

Praise for The Dark in Her Veins

Deliciously sexy. Lobb’s adult debut is everything I loved about Seven Faceless Saints and To Steal from Thieves, but darker, grittier, and more dangerous. Perfect for those who like their women angry, their love interests deadly, and their fantasy a little blasphemous.

Kate Dylan, Sunday Times bestselling author of Until We Shatter

Deliciously tenebrous and seductive, The Dark in Her Veins is an invective against the perils of religious conformity—all while developing a tantalizing, destructive relationship between main character Talin and the diabolist she falls for. Lobb’s breathless narrative verve wrapped me in from the start, and by the time I reached the end, I knew I would do any sinful thing for the second book. A triumph!

Taylor Grothe, author of Lethal Kiss