There are 3 books in the The Rook Files series. The newest book is Blitz which came out in 2022.

1
The Rook

Book cover of The Rook
The body you are wearing used to be mine.' So begins the letter Myfanwy Thomas is holding when she awakes in a London park surrounded by bodies all wearing latex gloves. With no recollection of who she is, Myfanwy must follow the instructions her former self left behind to discover…
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2
Stiletto

Book cover of Stiletto
THE CHECQUY: A centuries-old covert organization that protects the nation from supernatural threat.

THE GRAFTERS: A centuries-old supernatural threat.

After centuries of rivalry and bloodshed, two secret and otherworldly organisations - The Checquy and The Grafters - are on the verge of joining forces, and only one person has the…

3
Blitz

Book cover of Blitz
A new recruit to the most powerful supernatural intelligence agency on Earth is accused of going rogue and must go on the run to clear her name.

September, 1940. Three women of the Checquy, the secret organization tasked with protecting Britain from supernatural threats, stand in the sky above London…