A Rogue About Town by Rebecca Connolly

A disgruntled operative…
Gabriel Statler, Lord Wharton, has a problem. His duties as an operative for the Crown are being compromised for the sake of his cover, where he is known only as the Rogue. His days are now filled with trivial investigations, and none of the problems are ones he wants to solve. Then he meets a mysterious young woman who holds more secrets than he likes, and, against his better judgment, he takes her case.

A determined client…
Amelia Berger needs the Rogue, and she needs everything he can offer without revealing everything she knows. Her secrets are her own, and she has far too many to risk revealing even one. But when working with Rogue turns into something entirely unexpected, she finds that the secrets she began with are not the ones she most needs to protect.