The Lost Seekers

The Lost Seekers is a story arc that is most often referred to as "The Waterworks" because that's the area where you find the four quests that make up the story arc.

The Lost Seekers
The Lost Seekers is the principal leveling tool of many adventurers through levels 2 and 3.

This four part quest is known for being both generous in terms of XP, as well as having amazing quest rewards for the level. Many pieces of equipment found here are still worn by adventurers well into their later seasons. Additionally, completing this quest and talking to Harbormaster Zin will cause prices to improve at Harbor vendors, for both buying and selling (See here for details).

Further details are on the static reward list below.

The Kobold's Den

 * Clan Gnashtooth
 * Rescuing Arlos

Venn's Trail

 * Clan Tunnelworm
 * Venn's Fate

Gone Missing
Explore the Waterworks and find Guard Tember, who gives you actual quest of the Lost Seekers.

Reward List
This reward list also contains Bound to Account random equipment with lower minimum level than usual. No minimum level Featherfalling Boots for example, which is usually level 5.