
Brutal Birthright
romance
Series · dark romance
The Sinners Duet series by Sophie Lark has 2 books and is best read in publication order, starting with There Are No Saints (2021).
Start here: There Are No Saints (2021) — then read straight through in publication order.

The order the books were released — the default way to read the series.
The Sinners Duet is a two-book dark romance from Sophie Lark, a step away from her mafia-world series into psychological horror-thriller territory. There Are No Saints introduces Cole Blackwell, San Francisco's most celebrated sculptor and, in secret, a predator who hunts the city at night; when struggling painter Mara Eldritch survives an attack that should have killed her, Cole's fascination with her escape curdles into obsession, and he begins watching her even as a rival killer, Alastor Shaw, starts circling her as a pawn in his own war against Cole. There Is No Devil closes the story, following Cole and Mara's relationship as it's tested by Alastor's continuing pursuit and by how much of Cole's true nature Mara can accept and survive.
Published back to back in October and December of 2021, the Sinners Duet trades the Bratva-and-heist plotting of Underworld for a tighter two-hander built on obsession, art, and genuine menace rather than found-family mafia dynamics. It's a deliberately darker read than Lark's other series, with a killer as its hero, and is best approached by readers already comfortable with morally dark romance rather than as a first introduction to her work.
Publication order, and the only order that makes sense: There Are No Saints (October 2021), then There Is No Devil (December 2021). This is a single continuous story split across two books rather than two standalone entries -- There Are No Saints ends without resolving Cole and Mara's relationship or the threat from Alastor Shaw, so it should not be read as a standalone. Go in expecting a darker, more overtly horror-adjacent read than Lark's mafia-world series: Cole is written as a predator first and a love interest second, and the duet leans on dread and obsession rather than found-family warmth. Readers new to dark romance may want to start with a lighter Lark series, like Kingmakers, before committing to this one.
Two: There Are No Saints and There Is No Devil, both published in 2021.
There Are No Saints first, then There Is No Devil -- it's one continuous story across both books, not two standalones.
A dark romance between Cole Blackwell, a celebrated sculptor secretly hunting the city as a predator, and Mara Eldritch, a struggling artist who survives an attack and becomes the fixation of both Cole and a rival killer.
No -- it's a standalone dark-romance duology, separate from her mafia-world Underworld, Brutal Birthright, and Kingmakers books.
There Are No Saints ends unresolved and leads directly into There Is No Devil; the story is complete once both books are read.
Reading order last verified .