How many authors wrote books in the Wheel of Time series?
2
3
2
3
4
2
3
4
2
3
4
1
2
3
5
4
1
2
3
5
4
1
2
3
5
4
1
2
3
5
4
1
2
3
5
4
1
2
3
5
4
1
2
3
5
4
1
2
3
5
4
1
2
3
5
4
1
2
3
5
6
4
1
2
3
0
5
6
4
1
2
3
5
6
4
0
1
2
7
3
5
6
4
1
2
7
3
5
6
4
1
2
7
3
5
6
4
1
2
7
3
5
6
4
1
2
7
5
6
4
1
8
7
5
6
1
8
7
5
6
1
8
7
5
6
8
7
9
6
8
7
9
6
8
7
9
6
8
7
9
11
6
8
7
9
11
6
8
7
13
9
11
10
6
8
7
13
9
11
10
6
8
7
13
9
11
10
6
8
7
13
9
12
11
10
6
8
7
13
9
12
11
10
8
7
13
9
12
11
10
14
8
7
66
132
102
66
62
132
102
62