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HomeQuestsCitizenshipThe Final Ingredient for the Cure

The Final Ingredient for the Cure

Lv 17+· Jake's TraumaKerning City citizens

The Final Ingredient for the Cure is a quest for level 17 and up in Citizenship, started by Mong from Kong. It rewards 982 EXP and 555 mesos.

Talk to Mr. Goldstein

EXP
982
Mesos
555
Steps
1
Route to the startAdd to quest tracker
  • Before you start
  • What to do
  • Walkthrough
  • Rewards
  • Where to go
  • Chain
  • Series

Before you start

Citizenship
Kerning City citizenship, grade 2 or higher

From the game files, not tested in Classic World.

What to do

  1. 1Bring it to Mr. Goldstein

  • 982 EXP
  • 555 mesos
  • +50 Kerning City Contribution

Skill EXP, Contribution, and gender or Beginner limits are from the game files, not tested in Classic World.

  • Kerning CityQuest starts here

  • Requires Making the Medicine
  • Next Grandfather's Vitamin Gummy

Before
It seems like Mong from Kong in Kerning City still needs something else.
In progress
Claiming that he needs the final ingredient for the Stirge phobia cure, Mong from Kong in Kerning City asked me to go get a Vitamin Gummy from his grandfather, Mr. Goldstein in Lith Harbor. To think that Mr. Goldstein was Mong from Kong's grandfather... \r
Only characters at Level 17 or higher can complete this quest. 
Completed
Mr. Goldstein in Lith Harbor handed over the Vitamin Gummy with a suspicious look. Will this really be, okay?

  • Grandfather's Vitamin GummyLv 17 · Citizenship
  • It's All in the MindLv 17 · Citizenship
  • Making the MedicineLv 17 · Citizenship
  • Stirge PhobiaLv 17 · Citizenship
  • Before you start
  • What to do
  • Walkthrough
  • Rewards
  • Where to go1
  • Chain3
  • Series4

NPCs

Start
Mong from Kong
Finish
Mr. Goldstein
Starts at
Kerning City

Chain

Requires
Making the Medicine
Next
Grandfather's Vitamin Gummy

Last updated 5 Nov 2026, from game data version 779. How we gather data

How to complete

  1. 1
    Accept the quest from Mong from KongMong from Kong
    In Kerning City · Victoria Road
    From Perion → West Street Corner of Perion → West Rocky Mountain I → West Domain of Perion → Construction Site North of Kerning City → … (1 more) → Kerning City (6 maps)
  2. Needs Making the Medicine completed first.
  3. Level 17 or higher.
  4. 2
    Return toMr. Goldsteinto finish.
    In Lith Harbor · Victoria Road
    From Henesys → Henesys Hunting Ground I → A Hill West of Henesys → Forest West of Henesys → 3-Way Road-Split → … (4 more) → Lith Harbor (9 maps)