Ankerita (The Seventh House, #1)

In Tudor times, Ankerita killed her husband for abusing her, and his family walled her up in an anchorite cell for the rest of her life. Not content with that, they eventually gave her a poison which paralyzed her, and then buried her alive.
Her soul remained suspended between this life and the next for centuries, gradually developing in power and determination to escape, until a couple of young villains come to deface the ruin where she is buried. One of them, unknown, to him, is psychic.
Sh...