A Wayward Man (The Rookery Rogues #0.5)
Erica Monroe

Daniel O’Reilly has everything: the job of a lifetime and the love of the only woman he’s ever wanted. But the siren’s lure of gin calls to him, and Daniel can’t shake it. With each passing day, his life spins more out of control, until one night he’s wrongfully arrested for a murder he didn’t commit.
Shipping magnate’s daughter Kate Morgan knows her betrothed has flaws, but she’s determined to stick by him. Resourceful and smart, Kate believes that she can conquer their problems with force of will alone. But even she can’t stop Daniel from leaving, when the only other option is execution at Newgate Prison…