Remnant of a Broken Soul

Estella Potter grew up hiding her soulmark knowing that if the light side found out she had one, she could lose her soulmate. She bides her time until she can stand apart from her family and be with her other half. Little does she know, her last year at Hogwarts School of Witchcraft and Wizardry would turn her whole life upside down. Cross posted from under the same user on AO3