Reach the Planetarium | Keystone Citadel - another visit Lords of the Fallen Guide

Now, climb the stairs to the lower level (the grate, at which he knight used to stand, is open now) and enter the Planetarium.

In the Planetarium, you need to defeat all of the opponents to push the storyline forward.

Inside, there are several opponents waiting for you. In the first room, there is a Rhogar Knight and a Crossbowman (in the chest, there is the Harmony buckler). Take the corridor on the right and enter the location with a Rogue and a Rhogar Shieldmaster in (watch out in the narrow corridor). On the left, behind the huge chunk of rock, there is an Energy Shard, and an armor set in the chest- Dimensions [M5.22].

The guard is the last opponent that you need to defeat here. After you do, Kaslo and Antanas appear.

Then, walk over to the small room on the right, where you need to watch out for the Marauder and a Mage. Over the stairs, you will make it onto a small balcony. There, you are going to fight a Warden (watch out for his sword attack). After you defeat him, Kaslo and Antanas enter the Planetarium [M5.5], from whom you receive new objectives. Now, you need to head back to the Temple, to face the rest of the Lords and Adyr. After you talk to Kaslo for the second time, you can ask him for help (an additional health potion).