Office Tepios:
I will tell you about the area you will enter and what you must do there.
You will enter Hall of Suffering, which contains a Destroyed Tumor in each room. The nearby Souls of Coffin will gradually mutate into a Tumor of Death. If that happens, it will supply nutrients to the Seed -- obviously, we must stop it.
The undead in the area will try to prevent you from doing so. Ensure that all the Tumors remain in a deactivated state.
Finally, Yehan Klodekus and Yehan Klanikus, the chief gatekeepers of this area, will attack. If you can defeat them, your mission will have been a success.
"Understood."