Serena would walk round and around, turning lights on and off for the fun of it.

塞蕾娜就在屋子里逛来逛去，不灯开了又关，因为她觉得这很好玩。

I knew that by now Royer would be in England，and I felt sure that something terrible was going to happen and that only I could stop it. But it was not my business now.

而我不知道干些什么。重作自人我很不习惯。我进了一家上等餐馆去吃午饭，可仍然感到惴惴不安。每逢有人看我，我就疑想到了那件谋杀案。我事重重围着伦敦逛来逛去。我晓得罗耶现在已经在英格兰，而且肯定会发生什么骇人听闻的事件，而只有我才能制止。然而现在不关我的事了。