[Bull takes his time, waiting on Addie and Adam('s ghost projection) to follow him so he can make sure he can keep an eye out for them. No man left behind and all that. He takes a peek at the dead bodies, trying to discern anything about how old the corpses might be or what took them out, but it might not be as important as the . . ominous red glow and all.]

You already got a good look at a lot of it, but that red shit that's around is Red Lyrium. Don't touch, don't mess with it. It'll ruin your day pretty quick.

[He still has the axe out, ready for whatever is upstairs.]

Don't know what we're going to run into, but I'm gonna take a wild guess it's something to do with blood magic. If he's there, and you can talk to him - use facts. Demons can tell anyone they're your friend, but only we know the truth. It'll help.