She Commands the Shadows of Destiny

Esme Sanders, lady of Crestfall Estate, looks like she's in her twenties—ethereal and mysterious—but her true age is unknown. Centuries ago, she helped the Four Great Families rise to power, only to be humiliated by them. Now, Hector Gordon, heir of the Gordon family, seeks her help to break a curse. Seeing a hidden connection, Esme keeps him close and lifts the family's centuries-old curse.