The Guerreras' threat still looms over the Mikaelson house as Caroline tries to adapt to life as a vampire, away from her daughter. But an unexpected family reunion makes everything worse, taking away the little peace Klaus, Caroline and Elijah managed to find after the war that nearly broke them. [It's TO S2, but Caroline was a witch, had Klaus' baby and now she's a vampire]

As the 2nd son of a Duke, Klaus has the means to indulge in all manner of wild activity and very little respect for polite society - until his brother gives him an ultimatum. Caroline is a young debutante at odds with her prospects. When their paths cross, they realize they might yet strike a deal that could satisfy their relatives and benefit them both. [Regency/Bridgerton!AU]