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Anne Vellen

Sulphur & Salt · Book One

The Apothecary’s Debt

Some bargains never expire.

Mina Vale has always had demons in her life. Finding out that her parents sold her to one before she was born is considerably less familiar territory.

The Apothecary’s Debt is a darkly witty urban fantasy about family, freedom, infernal bargains, and the price of survival.

Publication date: 19 November 2026

Sulphur & Salt: The Apothecary’s Debt by Anne Vellen

Advance reader reviews

What early readers are saying

“a pretty near perfect read that's long enough to be savoured over quite a few nights.”

UccelloBooksprout

“I enjoyed the dry humour, likeable characters (even the demonic ones) and flowing style of writing.”

Sharon McAuliffeGoodreads

“The story is chef's kiss. I'm super excited for book 2!”

Leslie MGoodreads

Sulphur & Salt

Demons have rules. Witches have rules. Human beings have an alarming tendency to ignore both.

Sulphur & Salt is an urban fantasy series about bargains, power, loyalty, and the complicated business of treating monsters like people.

Cover of The Apothecary’s Debt

Book One

The Apothecary’s Debt

19 November 2026

Cover of The Rune Painter

Book Two

The Rune Painter

Coming later

Cover of The Broken Sigil

Book Three

The Broken Sigil

Coming later

Cover of The Brigadier’s Name

Book Four

The Brigadier’s Name

Coming later

Cover of The Contract Void

Book Five

The Contract Void

Coming later

Anne Vellen with her horse at sunset

Anne Vellen

Anne Vellen writes books about difficult people, stranger bargains, and the consequences thereof.

She has always loved books with bastards in them. She studied literature, briefly had enough of literature, and is now back to liking books with bastards in them. She lives in Europe with her husband, her horse, and an unreasonable number of books.

Occasional dispatches

Occasional news from the writer’s cave. No rambling.