From FFXI Wiki
- Speak to the Suspicious Hume in Pashhow Marshlands at (E-12).
- Taking the Voidwatch warp is the quickest route.
- He asks you to acquire one of three items, a Rabbit Hide, Lizard Tail, or Two-Leaf Mandragora Bud.
- Procure one of the items and trade it to either the Suspicious Tarutaru in Port Windurst at (M-4), Suspicious Elvaan in Northern San d'Oria at (L-8), or the Suspicious Galka in Port Bastok at (K-12).
- After a brief cut scene you are given the key item Ring of supernal disjunction.
- Examine the Odyssean Passage to receive a cutscene and complete the quest.
- To obtain Gladiatorial writ of summons for the quest The Curious Case of Melvien, speak to Suspicious Tarutaru, Suspicious Elvaan or Suspicious Galka. Select "Belligerency", exit the menu talk to them again and select the keyitem.