NOTE: If Morjean will only say "Ah, good day. I am Morjean, a researcher here...", it doesn't hold up the quest. Before heading out, be sure to have some sort of Sneak/Invisible to avoid aggro, and Warp for a quick escape once you have the Stalactite Dew.
Quickly search for the second ??? near the center of this room to receive the Key Item: Stalactite Dew. If you did not receive the key item, you have missed a step or you took too long between the ??? points.
NOTE: It is possible for a Will-o'-the-Wisp to be by the pool or the Stalactite and it will aggro by sight.
Return to Balasiel for your recognition. You can take A Knight's Test without having to zone after completing the quest if the requirement has been passed.