How many detective novels did the author of Murder on the Orient Express write?
66
3
3
7
3
7
3
7
4
3
6
5
7
4
3
6
5
7
4
1
3
6
5
7
2
4
1
3
6
5
7
2
4
1
3
6
5
7
2
4
1
3
6
5
7
2
4
1
3
6
5
7
8
2
4
1
3
6
5
7
8
2
4
1
3
6
5
7
8
2
4
1
3
6
5
7
8
2
4
1
3
6
5
7
8
2
4
1
3
6
5
7
8
2
4
1
3
6
5
7
8
2
4
1
3
6
5
7
8
10
2
4
0
12
1
3
6
5
7
8
10
2
4
12
1
3
6
0
5
7
8
ten
10
2
4
12
1
6
5
7
0
8
10
2
4
12
1
ten
6
5
8
10
2
4
0
12
1
14
6
ten
5
8
10
2
4
12
1
9
14
6
5
8
ten
10
2
12
1
9
14
8
10
2
13
12
1
9
14
8
10
2
13
12
11
9
14
8
10
13
12
11
9