…is different from most games. There are currently five types; Level Quests(lq), Area Quests(aq), Guild Quests(gq), Player Quests(pq) and Awards(aw). Each of the five types give different rewards, for example Level Quests give a reduction in the exp cost of the level in question. There are only a few rare times where one will need to accept a quest in order to do it.
Stonehenge, far northeast of Shadowkeep on the continent of Rothikgen
Something strange has happened around the stonehenge. All the druids are gone and a shadow has fallen upon the valley where its located, near the Volcano. Remove the curse and you'll be awarded the quest. Groa might be one good source for information, along with some others.