Better safe than sorry - what if it turns us into a bird? See what the scholar thinks.

He said that the ring's soul-swapping abilities require a 'focus' - a part of the target's body.

Whatever that part is, it must touch the ring to successfully complete the swap.

Geron had a plan to change the ring's magic word - this would render it useless to the Seer, and allow him to use it as bait.

For that to work, the ring's current magic word needs to be said backwards.

It was mentioned fleetingly during all of the nightmares - vaguely crow-themed.

The seer's magic word was 'Corvus' - and the ring's new magic word is for you to decide.

Something like that - with the ring now acting as bait, we just need to find the Harp.