In the second to last chapter of LFB, TC tries to give the ring to Lord Mhoram. Mhoram gives it back to him by forcing it onto the index finger of his right hand. So when he grabs the Staff of Law, with Bannor's help and thereby calls the fire lions it is using his crippled right hand. Oddly enough,...

Since originally posting this question I've finished re-reading Lord Foul's Bane, and there is also a reference in that volume to TC wearing the ring on the middle finger of his half hand (right). At the beginning of the novel he wears it on his left hand ring finger, but with Foamfollower's help he...

I recently read vol. 1 & 2 of the Last Chronicles and I'm sure I remember a passage that I understood to say that TC wore his ring on the middle finger of his right hand. It seemed weird at the time, but I didn't think about it further until I started re-reading Lord Foul's Bane afterwards. This...