Book 1

Murder on Thames

by Matthew Costello and Neil Richards

Published 18 September 2018

Book 2


Book 3


Book 4

Thick as Thieves

by Matthew Costello and Neil Richards

Published 1 September 2020

Book 5


Book 5


Book 5

The Body in the Lake

by Matthew Costello and Neil Richards

Published 15 December 2020

Book 8

Snowblind

by Matthew Costello and Neil Richards

Published 5 January 2021

Book 9

Playing Dead

by Matthew Costello and Neil Richards

Published 23 April 2021