Yahee Key

All credit to NoobsRus's blog post for this info.I rewrote their guide for readability and consolidation. Even with the rewrite, there is more info on their post if you need it.

Requirements:

• Level 1 Undead Karma

There are two keys, 2nd floor and 3rd floor keys. In order two make the keys, you'll need the following:

2nd floor key:

• 1,000 Fragments of Soul Stone

• Head of Chaos

Third floor key:

• 1,000 Fragments of Soul Stone

• Head of Death

Head of Chaos and Hand of Death are obtained by killing the respective bosses.

• Death spawns in Temple of Shadow 2F

• Chaos spawns in Temple of Shadow 1F

Once you have the requirements for a given key, find the consul in the Varlok's laboratory and find Incarnation of Varlok, he'll make you