The Keystone Citadel - Concerned Monk | Side quests Lords of the Fallen Guide
Last update: 11 May 2016
After you clear the Planetarium, right next to the entrance to that location, on the right, you can talk to the Concerned Monk [M5.6]. He asks you to find his brother.
Go towards the secret room #1, to find the missing brother. Locate the mysterious symbol on the floor and run ahead, for a moment, to enter the door that is temporarily unlocked. Defeat a Spider, and interact with the hanging cocoon [M5.10]. This way, you will obtain the Key to the Citadel basement. Take the key to the Planetarium and talk to the Concerned Monk again, and you will receive 4500 EXP.