The Sute Quest (Complete Walk-Through)
1.) Goto the Buya Mage Guild. (0127,0035)
2.) Speak with Eldritch inside and say "Sute". He will then explain to you the story behind Sute, and offer to give you a special dye to enter Sutes cave for 200 Coins.
3.) Then proceed to Sutes cave. (0104,0022)
4.) Goto the follow cave doors inside: Barren Graves (0008,0008) Dark Pools (0005,0003) Sute's Nest (0010,0001)
5.) Once you reach Sute's Nest, Sute should be in the top left corner. He has about a 30 Minute Spawn Time.
6.) Kill Sute and pick up Sute's key.
7.) Return to Eldritch at the Buya Mage Guild and say "Sute". You will get a Legend mark that says "Slew The Mighty Sute".