The Monstrous Duke's Adopted Daughter

The Monstrous Duke's Adopted Daughter begins with a family that treats its own daughter as expendable, and that dark starting point drives the whole series. The fantasy hook is strong: a bloodline with a secret magic that has lain dormant for a century. That secret gives the story a compelling engine, and the heroine's determination to escape her family's greed is easy to root for. The art is polished, and the drama builds with real intensity. The downside is tone. The series deals with abuse and cruelty in ways that will be hard for some readers, and it leans heavily on its revenge arc. Familiar revenge-fantasy beats will also be recognisable to experienced readers. Still, it's a finished series with a clear sense of momentum. If you like dark fantasy with a determined heroine and a big secret, this is a strong pick. Be prepared for a heavy read.