<비밀 결사> 영문판.
1922년에 출간된 애거사 크리스티의 추리소설.
제1차세계대전이 끝난 후 참전 용사였던 ‘토미(Tommy)’와 실직자인 ‘터펜스 Tuppence’ 두 친구는 돈을 벌기 위해 ‘청년 모험가 주식회사 The Young Adventurers, Ltd.’라는 사무소를 차리는데...

Prologue
1. The Young Adventurers, Ltd.
2. Mr. Whittington’s Offer
3. A Set Back
4. Who Is Jane Finn?
5. Mr. Julius P. Hersheimmer
6. A Plan of Campaign
7. The House in Soho
8. The Adventures of Tommy
9. Tuppence Enters Domestic Service
10. Enter Sir James Peel Edgerton
11. Julius Tells a Story
12. A Friend in Need
13. The Vigil
14. A Consultation
15. Tuppence Receives a Proposal
16. Further Adventures of Tommy
17. Annette
18. The Telegram
19. Jane Finn
20. Too Late
21. Tommy Makes a Discovery
22. In Downing Street
23. A Race Against Time
24. Julius Takes a Hand
25. Jane’s Story
26. Mr. Brown
27. A Supper Party at the Savoy
28. And After