Chola knows she’s too weak to take on a vampire right now. She would be pushing her luck taking on a newborn kitten. She goes to the abandoned mansion because she’s ordered to, and because she’s promised that there will be backup. Because the council has known what it was doing in the past. She has on her person a Saint Benedict medal, a small dagger, a crossbow, and two wooden crosses, both of them whittled to a point at the bottom. She normally carries an axe, but she's left it behind on the grounds that she won't be able to properly lift it right now.
There's a wooden box inside the mansion, a little larger than a casket, just the right size for a person or a person-shaped monster.
The doors lock behind her the moment she’s through them.
It occurs to her that possibly the council has been compromised in some way.
The box snaps open.