The Inquisitors wander the world seeking hotbeds of heresy. Once they encounter Apostates, they thoroughly study their strengths and weaknesses. Conduct this Study and the Inquisitors will be able to attack level V Apostates.
| Level | Food | Lumber | Iron | Stone | Silver | Gold | Time | Requirements | Allows you to attack level V Apostates | Power | Hero's Experience |
| 1 | 24M | 24M | 24M | 24M | 24M | 455K | 23w 5d 00h 00m 00s | ✓ | 2.2M | 980K |
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