Maria can't explain what she is or what she's done.
After all, it shouldn't be possible for a human to conjur fire from nothing but pure will, but that hasn't stopped her before.
She can't remember how she ends up bloodied, beaten half to death on a deserted doorstep in the middle of the night, but she can remember him, bringing her in. He's a little reserved but she doesn't mind, especially as they have something in common: neither one is supposed to exist outside of nightmares and folklore.