Where is the healer's ring?

Hint 1 of 9:

No one is dishonest enough to steal the ring.

Hint 2 of 9:

Someone probably took it by accident.

Hint 3 of 9:

Actually, some *thing* took it.

Hint 4 of 9:

Have you noticed the healer's pet?

Hint 5 of 9:

One of the pterodactyls has a nest outside of the healer's.

Hint 6 of 9:

You can search the nest in several ways.

Hint 7 of 9:

Magic users only need the proper spell to get the nest.