Summon your golden beaver minion. Remember: all that glitters is not gold. Sometimes, it is a beaver.
Whether this creature is a beaver turned into gold, or gold turned into a beaver is anyone's guess. It is said to appear in the passages of Lyhe Ghiah at the very moment one's heart's desire is fulfilled. Given the location, that would generally involve some sort of treasure.
How to obtain:
Treasure Hunt -- The Shifting Oubliettes of Lyhe Ghiah