How many books are in the Little House on the Prairie series original?
9
8
8
8
4
5
8
4
6
5
8
4
7
6
5
8
4
7
6
5
8
4
7
6
5
8
4
7
6
5
8
4
7
6
5
8
4
7
6
5
3
8
4
7
6
5
3
8
4
7
6
2
5
3
8
4
7
9
6
2
5
3
8
4
7
9
6
2
5
3
8
4
7
9
6
2
5
3
8
4
7
9
6
2
5
3
8
4
7
9
6
2
5
3
8
4
7
9
6
2
5
3
8
4
7
9
6
10
2
5
3
8
4
7
9
6
10
11
2
5
3
4
7
9
6
10
11
2
5
3
4
7
9
6
10
11
2
5
3
7
9
0
6
10
11
2
3
7
9
1
109
10
11
2
0
3
9
1
ten
10
11
2
3
109
0
9
1
10
11
2
3
ten
109
9
1
0
10
11
2
3
ten
9
1
109
10
11
2
0
3
9
14
1
ten
10
11
2
3
109
148
0
9