[Fathom Zero]

I'm having a bit of touble trying to complete the quest to get the manor in Anvil.

I got both the skeletal hand and journal, got the dude from Imperial City to open the door, he took off afterward. I walk up to the skeleton, he talks, and it says I need to replace the hand. I figured I still had it in my inventory so I click on the bony dude. As it turns out, I don't have it and I don't think I sold it. That guy must've taken it when he ran off, so does anyone know where to find him after he runs away?