SPOILER The Citizens Of Cities

So I was looking around in gavel. And then I saw that there were Citizens (NPC) everywhere in Cities. When I clicked on one in Llvigar He said: Siegfried killed a lot of orcs. And when I went to a random Orc cave I saw an loot 3 chest. In an Orc cave, With a lot of blood. Wait a second, I thought "Siegfried killed a lot of Orcs (killing with blood). So I went to Olux to see if I could get another citizen to speak to me and give me a hint. And I went to the nearest citizen, and he said; There are rumors that there are snake people on the south west side of Olux. And really fast I found a cave with a puzzle in the shape of a snake. it opened a cave, and what did I find 3 loot chest tier 1 and 2 and 1 tier 3 chest. There was also boss, lvl 60 ( If you use an Olux legendary weapon then he's dead in 5 hits).

My conclusion: Citizens give a hint for a good farming spot and chest route spot. ( I haven't tested this in Wynn yet but then I will update the thread)