| Quest name | Lost City / Forgotten City Quest / Automaton Recruitment |
| NPC | Aaron Reisner / Automaton Gigas |
| Location | Near the Forgotten City |
| Required level | 145 |
| Reset | Secrets of Time: Automaton |
Final Reward::
- Experience: 165,000,000
- Gold: 60,000,000
- Item: [Heart of Gigas]×1
| Quest Title | NPC | Mission | Rewards |
|---|---|---|---|
| 1. Reminiscence | Aaron Reisner | Answer question: [Grand Canyon] | Experience: 5,000,000 Gold: 2,000,000 |
| 2. Forgotten City | Aaron Reisner | Go to Forgotten City | Experience: 10,000,000 Gold: 5,000,000 |
| 3. Encounter | Aaron Reisner | Talk to [Automaton Gigas] | Experience: 5,000,000 Gold: 2,000,000 |
| 4. Shudder | Automaton Gigas | Talk to [Aaron Reisner] | Experience: 5,000,000 Gold: 2,000,000 |
| 5. The Energy of Atlantis | Aaron Reisner | Fetch [Oriharukon]×10 | Experience: 10,000,000 Gold: 5,000,000 |
| 6. City Patrol | Aaron Reisner | Acquire [basic info] on [Sentinel of Flame] | Experience: 10,000,000 Gold: 10,000,000 |
| 7. Gigas | Aaron Reisner | Talk to [Automaton Gigas] | Experience: 5,000,000 Gold: 2,000,000 |
| 8. Atlantis Abandoned | Automaton Gigas | Kill [Sentinel of Madness] (10) Kill [Sentinel of Life] (10) |
Experience: 30,000,000 Gold: 10,000,000 |
| 9. Gigas Core | Automaton Gigas | Hunt [Forgotten City Guardian] for [Gigas Core]×3 and / or Craft [Gigas Core]×3 |
Experience: 50,000,000 Gold: 10,000,000 [Heart of Gigas]×1 |
| 10. New Master | Automaton Gigas | Talk to [Aaron Reisner] | Experience: 5,000,000 Gold: 2,000,000 |
| 11. Atlantis | Aaron Reisner | Answer question: [Atlantis] | Experience: 30,000,000 Gold: 10,000,000 |