I have been doing treasure trails for years, since 2007 at least. And I have killed greater demons, steel dragons, red dragons and a lot more monsters that drop third age armor.
Oh and what the game says is a lie, it claims I have done something like 100 something treasure trails, I have done at least 1,000.
The reason I want to get third age armour is so I can get mad rich quick. Is it worth it, or should I give up on trying to get a third age armor?