How many books are in the His Dark Materials series by Philip Pullman?
3
4
4
3
4
3
4
3
4
3
4
3
4
3
4
3
4
3
4
5
6
3
7
4
5
6
3
7
4
5
6
3
7
4
5
6
8
3
7
4
5
6
8
3
7
4
5
6
8
3
7
4
5
6
8
3
7
4
5
6
8
3
7
4
5
6
2
8
3
7
4
5
6
2
8
3
7
4
5
6
2
8
3
7
5
6
2
8
3
7
5
6
2
8
7
5
6
9
2
8
7
5
6
9
2
8
7
5
6
9
2
8
7
5
6
9
2
8
7
5
6
9
2
8
0
7
5
6
9
2
8
7
5
6
9
0
2
8
7
9
2
8
0
10
9
2
8
0
10
9
1
2
8
11
10
9
0
1
2
11
10
9
1
2
0
11
10
9
1
2
ten
11
0
10
9
1
12
109
2
ten
11
10
9
0
1
12
2
109
11
14
ten
10
9
1
12
13
2 volumes
11
108
14
109