Catching up on some recently read books - this is historical romance / crime fiction from New Zealander Author, Jude Knight.
From the Blurb:
Prue's job is to uncover secrets, but she hides a few of her own. When she is framed for murder and cast into Newgate, her one-time lover comes to her rescue. Will revealing what she knows help in their hunt for blackmailers, traitors, and murderers? Or threaten all she holds dear?