Hub 5: Vivarium

Vivarium is a bonus level in Hub 5: Necropolis in Hexen.

Walkthrough
This level is optional, but it will provide lots of helpful items for the final hub. As the intro suggests, the entrance portal is only available before you enter any of the tombs, after which it is closed off.

Variations
Depending on which character class you play as, different enemies appear in the level. As the Fighter, there will be Centaurs, Slaughtaurs, and Green Chaos Serpents. As the Cleric, you will face Dark Bishops, Brown Chaos Serpents, and Ettins. As the Mage, there will be Reivers, Afrits, and notably Wendigos, who otherwise only appear in the first hub. While there are always Ettins present, there are more for the Cleric.