TLDR I need to get warped to Hidden Street : Heart of Lava (map id 921100000) to complete this quest.
DETAILS So I did the quest and then Adobis (the guy that lets you in Zakum) is supposed to let you enter a mini JQ map to complete the quest but he doesn't have that option in his chatbox.
See this video below of a guide and go to 2:21, you can see the last option "Enter the center of Lava". So I already have the Etc item Hardened Glass Bottle and need to get to that mini JQ map to get the skill.