To wage war, we need not only brave warriors, but also skilled spies. Conduct this Study to start training Sparks in your Town.
| Level | Food | Lumber | Iron | Stone | Silver | Gold | Time | Requirements | Unlock Sparks | Power | Hero's Experience |
| 1 | 1.2B | 1.2B | 900M | 1.2B | 2B | 14.5M | 446w 00h 00m 00s> 8 Year(s) | ✓ | 5.45M | 7.55M |
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