This odd chamber beneath Aeternis is home to mutated flytraps. It was chosen by Cobweb for his safehouse due to the natural defenses. One of the flytraps holds his stash and plenty of important documents.
The area is straightforward, but requires a bit of finesse navigating. To reach Cobweb's stash, avoid the teethed flytraps. The one without teeth leads across to Cobweb's stash, which is simply operated by activating it.