A case of secret identities finds reunited lovers on opposite sides of the law in this fun, flirty Regency romance. There's only one case Bow Street agent Alex Harland, Earl of Melton, hasn't cracked: the identity of the mysterious woman who stole a kiss from him before he left for war. He's neither forgotten—nor forgiven—her for leaving him wanting. When he starts investigating the Nightjar, an elusive London jewel thief, he keeps running into the alluring Emmy Danvers, who stirs feelings he hasn't felt in years. Even though Emmy's loved Alex for years, she can't risk revealing her heart, or her identity as the Nightjar. With Alex on her case, Emmy knows that her secrets are in danger of being discovered. Their cat and mouse game heats up with every interaction, but when Emmy's reputation—and life—is at risk, will Alex realize that some rules are made to be broken for love?