The ring is on these 2 skeletons attached to a wall, its called the lovers ring.
Theres an item in a grate near some jellies its a finger I think, cant remember.
Kobold shaman has a staff.
The blood of a true friend you get of the old guys pet carrion crawler when you kill it.
You activate the pipes by clicking on them a second time youll have to find the order yourself the text riddles are clues.
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