My Lady Rogue (Nelson's Tea #2.5)

Baroness Gillian Chauncey thought she’d seen everything during her years of devotion to England. But as war escalates and political bonds are severed, a devastating betrayal forces Gillian to make a life or death decision to save the man she loves.
Lord Simon Danbury’s loyalty to the crown has never been questioned — until now. As death’s darkening veil cascades over London, a hostile mole inside Nelson’s Tea tries to assassinate him. Surrounded by the greatest spies in England, only one thing stands to defeat him — losing the one woman who has made life worth living.

Everything Simon and Gillian have done has led to this moment… Will it be too late?