Where to get sphere source that would make the mask Fanu? (Divinity: Original Sin 2)

Maxim Grafov
In the basement of a lizard which was saved from the gallows, there to the left of realnogo places to eat a stone (tipo chest, he still sort of floating in the air) and there is one Black pit(like at the end of the falls, can't remember exactly but for sure at this point ).

Maxim Grafov
can still kill a possessed chicken from her drops.