Additional artifacts in Necromancers return?

[vehystrix]

So I decided to replay the game with the shadow hand enabled, and to up the dificulty one to the highest.

When I was in the fortress(ch2) fighting the beast with the artillery and stuff, I killed it and there was another vampire artifact floating above his corpse. I picked it up and my max fury level was increased to 28. At the end of the level it also said that I found 001/001 artifacts. Now I'm wondering if there's any more additional artifacts you can acquire, or that this may be some sort of bug.

Also, I noticed I didn't have access to my shovel, bayonet, and grenade anymore(not that I need them with the shadowhand and all)