Aryobarz says, "The best way to sneak into the Gulch is to disguise yourself as a Ksaravi. I have a single use illusion potion that will make you look like one of them."
"Our intelligence tells us the Ksaravi storytellers congregate at the Hall of Tales. I'll make that location down in your journal. Once you're there, drink the potion and speak to the storytellers, since they'll have the most information for you."
"And never that the bottle doesn't have a label - it's just a very old potion."
Head to the Hall of Tales in the Gulch. This is the deepest part of the gulch, and is surrounded by closely-packed, difficult monsters, so you will need a group or a partner, depending on your level.
It is important that you do not drink the potion until you are absolutely ready. The potion will not make the Ksaravi non-aggressive toward you and its effects only last 5 minutes. Once the illusion is gone, you have no option other than abandon the quest and start over, if you fail to approach the storytellers.
The storytellers are located inside the Hall of Tales. You can approach from either the top or the bottom. There are storytellers throughout the inside of the building. They are non-aggressive, non-combatant NPCs.
Be certain to clear a path to four storytellers before using the potion. Then drink the potion and run near the storytellers. The quest will update, and the storytellers will run away. *Only one person should use the potion at a time.* Once the storytellers run, you have to wait for them to reset before another person can get credit, which will take longer than the potion's effect will last.
When you have approached four of the storytellers, return to Aryobarz.
Aryobarz says, "It turned you into a Tuatiren?!"
"I can hardly believe it!"
Aryobarz says, "I cannot apologize enough for this mishap, Alysanne. I regret that we did not obtain any new information about the Ksaravi's plans."
"Then again, perhaps we did. You said the storytellers ran away from you when you tried to approach them as a Tuatiren. At least that tells us that they have a surprisingly strong fear of the lizard people."
"Nonetheless, I thank you for all the difficult work you've done for me and the Ahgram Military."