Peerless Varos

Varos' Lair is located in a cave behind Cove, Trammel.

You will need 4 Keys in order to Summon Varos.

Summoning Items
Item	Monster
Black Widow Legs	Black Widow
Elemental Venom	Venom Elemental
Toxic Blood	Toxic Elemental
A Toxic Gland	Toxic Beast

You can then turn in those 4 items once you have them to the Cauldron in the area. When double-clicked, the altar will pull you and any party member standing on the altar island directly to the boss fight if the fight is available.

Note: all party members must be in the same altar island area for them to be invited.

Boss
Varos