Bribe Amarian architects to share the blueprints of enemy Castles. If your warriors know their secret passages, the enemy won't stand a chance. This Study will increase your army's offense in Castles.
| Level | Drafts | Time | Army Offense in Castles | Power |
| 1 | 3 750 | 29w 12h 00m 00s | 5 | 13M |
| 2 | 5 000 | 31w 4d 12h 00m 00s | 15 | 13M |
| 3 | 6 700 | 35w 3d 12h 00m 00s | 25 | 13.5M |
| 4 | 9 050 | 41w 12h 00m 00s | 35 | 13.5M |
| 5 | 12 500 | 49w 1d 00h 00m 00s | 45 | 13.5M |
| 6 | 17 500 | 60w 4d 12h 00m 00s> 1 Year(s) | 55 | 13.5M |
| 7 | 24 000 | 77w 2d 00h 00m 00s> 1 Year(s) | 65 | 14M |
| 8 | 33 500 | 101w 4d 12h 00m 00s> 1 Year(s) | 75 | 14M |
| 9 | 47 500 | 138w 00h 00m 00s> 2 Year(s) | 85 | 14M |
| 10 | 68 500 | 193w 3d 00h 00m 00s> 3 Year(s) | 100 | 14.5M |
| 228K | 757w 3d 00h 00m 00s> 14 Year(s) | 100 | 136.5M |
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