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Library Upgrades
| Level bfmhfansite.com | Cost | Bonus |
|---|
1
| 100
100
20
| 1
|
2
| 450
450
100
| 2
|
3
| 1,800
1,800
500
| 3
|
4
| 6,300
6,800
1,700
| 4
|
5
| 18,900
18,900
5,100
| 5
|
6
| 47,000
47,000
12,800
| 6
|
7
| 71,000
71,000
19,000
| 7
|
8
| 106,000
106,000
29,000
| 8
|
9
| ?
?
?
| ?
|
10
| ?
?
?
| ?
|
