dc的混沌儀式

1. 犯人一定要是在故事發生之初登場的人物

The criminal must be someone mentioned in the early part of the story, but must not be anyone whose thoughts the reader has been allowed to follow.

2. 偵探不能運用超自然的能力來解決事件

All supernatural or preternatural agencies are ruled out as a matter of course.

3. 犯罪現場不能有秘道或秘洞

Not more than one secret room or passage is allowable.

4. 不能在犯罪中使用未發現的毒藥或需要太深奧的科學上的解說的裝置

No hitherto undiscovered poisons may be used, nor any appliance which will need a long scientific explanation at the end.

5. 不能讓中國人在故事中登場(那個時候的歐美認為中國人有神秘力量)

No Chinaman must figure in the story.

6. 不能憑偶然或第六感來解決事件

No accident must ever help the detective, nor must he ever have an unaccountable intuition which proves to be right.

7. 偵探自己不能是犯人

The detective must not himself commit the crime.

8. 偵探不能用讀者所不知道的線索解決事件

The detective must not light on any clues which are not instantly produced for the inspection of the reader.

9. 扮演華生(故事的敘述者)角色的人要把自己的判斷全部讓讀者知道
或者是扮演華生角色的人的智力要比一般讀者遲鈍一點

The stupid friend of the detective, the Watson, must not conceal any thoughts which pass through his mind; his intelligence must be slightly, but very slightly, below that of the average reader.

10. 雙胞胎或一人扮演兩個角色的情節時要事先讓讀者知道雙胞胎的存在

Twin brothers, and doubles generally, must not appear unless we have been duly prepared for them.