The Kitty Peck series is published by Faber and Faber.
Book 1, Kitty Peck and the Music Hall Murders: published 2013.
Kitty Peck and the Child of Ill Fortune, the sequel: published July 2015.
Four books are planned to complete Kitty’s story. I have just finished book three, Kitty Peck and the Daughter of Sorrow (see above) and I’m plotting the fourth.