Guild Wars 2

While leveling I randomly picked up some Aether Key Pieces which I turned into an Aether Key. It says I can use it on Aether Chests in some place called Twilight Arbor but I don’t know where that is. I checked the wiki article on the keys but it didn’t have any more information than the item tooltip.

Can someone fill me in on what these keys are all about?

Thanks for the response Falunel, I sent a reply in-game with a couple additional questions, hopefully it’ll get to you.

I’m fairly new to the game and was leveling my Warrior in Queensdale last night when I noticed something odd. Every time I came across an event with a boss there was a massive group of people killing it, and yet during any other dynamic event like collecting apples or protecting a farm, I was usually the only one there.

I asked about it and one person called me a noob while another said something about uniques, I assume there’s a good reason everyone wanted to kill these bosses so could someone fill me in? To be specific the bosses I saw a ton of people at was a thief dude in a cave, a big ol boar, and a giant wasp or bee I think.