Welcome to NGB and our Clair Obscur: Expedition 33 area guide on exploring the Sinister Cave! In this guide, we’ll cover everything you need to know, from collectibles to side quests. Whether you’re aiming for 100% completion or just want to make sure you don’t miss anything, we’ve got you covered!
If you need help with a specific objective, please refer to our Quick Links section for quick access to the information you need!
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Sinister Cave Area Collectibles & Noteworthy Tasks
Sinister Cave – Entrance
Chromatic Chalier

From the rest point, head through the tunnel, deeper into the cave, and stick to the right wall when it opens up. This will eventually lead you to the Chromatic Chalier. Every turn, the Chalier will gain a stack of Berserk, increasing its damage by five percent up to twelve times. It will attack using primarily three attacks.
The first is its swing combo, which has three strikes. You’ll want to jump for the first one, then immediately parry the next two. It also has a punching combo where it will kick and punch you with three strikes. The other attack is a berserk swing, where it will strike about five times.
You’ll be rewarded with the Chalium weapon for Maelle, 2 Resplendent Chroma Catalysts, and 5 Colour of Luminas for defeating it.
Corderon Weapon

Starting back from the rest point, follow the tunnel and then keep following the right wall like you are going to the Chromatic Chalier.
When you take the right, a lantern will be resting on a ramp. Above that, you should see a grapple point. Use it to jump up to a rock ledge, then look the way you just came from to find a second. Grapple over there and follow along the path until you reach a lantern near a ledge. Drop down there and you’ll find the Corderon weapon for Sciel near a dead gestral.
Nocturne Pour Lumiere

Do the same thing as above, heading to the lantern just above the dead Geatral. Instead of dropping down, follow the path to the left.

You’ll notice a hole in the floor at the end of the path. Drop down there to reach the music record.
Elerim Weapon

Back at the rest point once more, follow the tunnel until you emerge into the bigger room (the rock with the dead Gestral will be in front of you). From there, hug the left wall and keep left until you reach the giant frozen creature with the weapon on the ground in front of it.
Expedition 33: Guides, Tips, and Walkthroughs
For more in-depth guides, tips, and walkthroughs, be sure to explore our Clair Obscur Expedition 33 Guides and Walkthroughs main page for all the latest content and updates.