Isabel and the Rogue

Isabel Luna Valdés is the middle Luna sister, and the one nobody notices. Her family has been exiled from Mexico and now lives in London, where Isabel has put the notice to use. Through her ties to the Mexican ambassador, she gathers British intelligence that might help her homeland resist the French occupation. She works the drawing rooms and private studies of the aristocracy, looking for secrets worth carrying home.

Captain Sirius Dawson keeps getting in her way. A decorated war hero, he now works as an agent of the Home Office, and he has made a game of coaxing secrets out of London's elite. Isabel and Sirius cross paths again and again, and their rivalry slowly turns into attraction.

The trouble comes when Isabel finds correspondence that could shift the course of the conflict. She has to set her feelings for Sirius against her loyalty to Mexico, and she cannot honor both without a cost.

This is a Victorian historical romance with a spy plot at its center, built on rivals who become lovers and a tension that builds slowly. It is the second book in the Luna Sisters series and follows Ana María and the Fox. The sisters' bond runs through it as they try to make new lives and find love in a society that underestimates them.