IIRC, Rings are somehow fleetingly associated with Thu in The Lay of Leithan. Need to check that at home.
In line 2146, Thu (the precursor of Sauron) asks Beren, Felagund and their followers: "Who is the giver of gold and rings?" - although the answer there is supposedly Morgoth. "In the morning Bilbo misses breakfast. – is this the most unbelievable part of this chapter?" - Elven
The weekly discussion of The Hobbit is back. Join us in the Reading Room for a somewhat less clever discussion of Queer Lodgings!