Talk to Tamara du Cinghalle at 43.2N 67.1W the base of the tower near the road leading out of town.
Run just east of the Deru Trees on the northeastern edge of the Marae Lassel Plateau at 51.8N, 72.7W (take the portal at 42.0N 77.6W near Redspire and Bluespire to get up onto the plateau).
Kill 50 tentacles.
Double click on the Eye-covered Tentacle of T'thuun to retrieve a Plucked Eye of T'thuun. After you pluck the eye, high level sclavus will spawn. You could simply leave at this point since the reward has been given.
Tamara du Cinghalle tells you, "Greetings."
Tamara du Cinghalle tells you, "I have a task for you, if you are willing to aid us against the beast, T'thuun, who has been harrying the Deru Trees on Marae Lassel. The Tumeroks up on the Plateau have been in an uproar about this T'thuun since the first tentacles appeared."
Tamara du Cinghalle tells you, "Our researchers believe, if we can get one of the eyes from the largest tentacle by the Trees, that we can use it to find a long-term solution to this problem."
Tamara du Cinghalle tells you, "The challenge is, that unless the tentacles are weakened and the large tentacle is distracted, it's impossible to get an eye off of it."
Tamara du Cinghalle tells you, "Killing the smaller tentacles seems to distract the larger one. Killing 50 should be enough to get an eye off of the larger, eye covered one."
Tamara du Cinghalle tells you, "Bring me back an eye, and I'll reward you on behalf of my superiors and the Tumeroks on the Plateau."
You have killed 50 Tentacle of T'thuuns! Your task is complete!
Tentacle of T'thuun is torn to ribbons by your assault!
You quickly pluck an eye from the confused and distracted tentacle, which begins to radiate menace as the remaining eyes focus in on you.
Eye-covered Tentacles of T'thuun gives you Plucked Eye of T'thuun.
Tamara du Cinghalle tells you, "You look like you've been busy. Have you completed the task I set before you?"
You give Tamara du Cinghalle Plucked Eye of T'thuun.
You've earned 263,129,446 experience. (Level 258)
Tamara du Cinghalle tells you, "Ahh, success. The researchers will be very pleased. With this, we can hopefully find some way to end this infestation of the Deru Trees. The researchers told me that it'll take roughly 2 weeks to complete the tests on this eye. Return to me after that, and I may have more work for you."
Tamara du Cinghalle tells you, "And, here is your reward, on behalf of my superiors and the Tumeroks up on the plateau."
Tamara du Cinghalle awards you the title, "Plucker of Eyes".
