1. 1 THE UNEXPECTED GUEST 2780 单词

2. 2 THE MAN FROM THE ASYLUM 1488 单词

3. 3 WE HEAR MORE ABOUT LI CHANG YEN 3502 单词

4. 4 THE IMPORTANCE OF A LEG OF MUTTON 2354 单词

5. 5 DISAPPEARANCE OF A SCIENTIST 2180 单词

6. 6 THE WOMAN ON THE STAIRS 2546 单词

7. 7 THE RADIUM THIEVES 3673 单词

8. 8 IN THE HOUSE OF THE ENEMY 4034 单词

9. 9 THE YELLOW JASMINE MYSTERY 2218 单词

10. 10 WE INVESTIGATE AT CROFTLANDS 2622 单词

11. 11 A CHESS PROBLEM 4691 单词

12. 12 THE BAITED TRAP 2702 单词

13. 13 THE MOUSE WALKS IN 2622 单词

14. 14 THE PEROXIDE BLONDE 4498 单词

15. 15 THE TERRIBLE CATASTROPHE 4110 单词

16. 16 THE DYING CHINAMAN 4223 单词

17. 17 NUMBER FOUR WINS A TRICK 3194 单词

18. 18 IN THE FELSENLABYRYNTH 3043 单词