How many books are in Twilight?
5
5
5
5
5
5
5
5
5
6
5
7
6
5
7
6
5
7
6
3
5
7
4
6
3
5
7
4
6
8
3
5
7
4
6
8
3
5
7
4
6
8
3
5
7
4
6
8
3
5
7
4
6
8
3
5
7
9
4
6
8
3
5
7
9
4
6
8
3
13
5
7
9
4
6
8
3
2
13
7
9
4
6
8
3
2
13
7
9
4
6
8
3
2
13
7
9
4
6
12
8
3
2
13
7
9
4
6
12
8
3
2
13
7
9
4
6
12
8
3
2
13
7
9
4
6
12
8
3
2
13
7
1
9
4
6
12
8
3
2
10
13
7
1
9
4
12
8
3
2
10
13
1
9
11
4
12
8
3
2
10
13
1
9
11
4
12
8
3
2
10
13
1
9
11
4
12
8
2
10
13
1
9
11
12
8
2
10
13
1
9
11
12
2
10
13
1
9
11
12
7 books