Meet Sister Agnes. She’s not your typical nun. She loves killer shoes, sipping prosecco — and solving mysteries . . .

Sticks and stones may break her bones . . .

There’s no safe haven for Abbie, a vulnerable young addict who’s struggling to stay clean. Worst of all is her addiction to drug-dealer Murchie.Abbie comes to Agnes’s shelter to escape him. Agnes promises to protect her while she’s under her roof.

But Murchie won’t let Abbie go without a fight. Every night, he comes to hurl stones at the shelter, until Abbie agrees to meet him one last time.

Hours later, Abbie returns distraught and locks herself in her room. Her friends break down the door too late. They find Abbie lying dead, a needle in her arm.

Agnes can’t believe she’d take her own life. The Abbie she knew wasn’t ready to give up on her dreams . . .

Someone out there knows the truth about Abbie’s death — the same someone, perhaps, who left a bunch of wilting roses on the shelter steps? Along with a cryptic message: There are promises that no one can break.

To Agnes, it doesn’t read like a promise. It reads like a warning . . .

Please note, this book was previously published as A Violent Act.

A gripping, sophisticated crime mystery that will have you intrigued from the first page. Steeped in the intoxicating atmosphere of Central London, from the twisty alleys of Soho to the grimy towpaths of Kings Cross.

This masterfully crafted, character-driven mystery is perfect for fans of Joy Ellis, Robert Galbraith, Val McDermid, L.J. Ross and P.D. James.