| Chrono Quest | 15世紀第4期 |
| Offer Method | adventure quest |
| Difficulty | 4 |
| Time Limit | none |
| Town | Seville, Genoa, Marseille, Naples, Venice |
| Required Skills | Geography (2), Visibility (1), Portuguese |
| Discovery | Geography / Principe An uninhabited island floating on the west coast of Africa. The soil is considered to be fertile and suitable for agriculture. The temperature is extremely high throughout the year. [Principe] (quest_404.md) Island Rank: 1, Points: 2, Difficulty: 2, Experience Points: 105 |
| Reward/Advance | Remuneration: 104,500 / Advance payment: 0 |
| Exp/Fame | Experience points: 385 / Fame: 192 |
| Items Obtained | Observation techniques for explorers☓10 |
| Chain Quests | |
| Notes | 1. Lisbon Admiral Diaz's residence Admiral Diaz 2. Sao Tome Departure official 3. Visible near the island northeast of Sao Tome *Bonus Quest Monday |