What Lies Beneath

This quest can be obtained from Len Caldoron in Lion's Arch. This quest is to enter the Eye of the North preview event (possibly Eye of the North, period). You need to walk north out of Lion's arch to a newly formed crevasse. When investigating you will be transported to the area: Beneath Lion's Arch. When entering this area for the first time you need to download the map/update which is 70.4mb.

There are minor enemies consisting of Lvl 16 Hellhounds, and a new enemy, Hellhound Keeper. Easily dispatched with Lvl 20 heroes. There are Lvl 12 ghoul popups, and two more Lvl 12-13 Skeleton Monks/Sorcerors after that.

You then come upon some dwarves working. Their leader is Ogden Stonehealer. A cut scene plays and you meet your first Asura.

Lvl 28 Destroyers appear and you now have 3 minutes to escape by running. (There are some small side areas that you bypass, not sure if they contain anything valuable.) You escape into a portal (the large glowing purple thing).

Another large download.

Another cutscene where you meet your first Norn.

You end up in the town of Boreal Station.

There is no necessary fighting in this quest, it is easier and quicker to just run through it.

Trivia

 * What Lies Beneath is a movie title with Harrison Ford (link to IMDB)