文案：伪暴风雪之夜的故事，可以猜猜看谁是最后的凶手...1 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.罪犯必须是故事开始时出现过的人，但不得是读者可以追踪其思想的人。 2 All supernatural or preternatural agencies are ruled out as a matter of course. 　　侦探不能用超自然的或怪异的侦探方法 　　3 Not more than one secret room or passage is allowable.犯罪现场不能有超过一个秘密房间或通道主角：牧野夏，苏雪迟，莫薇雅，莫芷雅，星沫，步非烟，步曲烟，乐小吟 ┃ 配角：佩蒂·玛格夫人，海蒂 ┃ 其它：悬疑，侦探