(There's) absolutely no sign of a break-in.
没有强行闯入的迹象。
The intruder must have been hidden inside some place.
入侵者一定藏在房子里。
Show me where the brother slept.
带我看看弟弟睡觉的地方。
The boy sleeps there every night.
那男孩儿每天躺在这儿。
Gazing at the only light source outside in the corridor.
盯着外面走廊唯一的光源看。
He'd recognise every shape, every outline, the silhouette of everyone who came to the door.
他能辨认出所有的形状，每一个经过的人影。

OK, so? So if someone approaches the door who he doesn't recognise, an intruder, maybe he can even see the outline of a weapon.
好吧，所以呢？所以如果有他不认识的人接近一个入侵者，说不定他甚至能辨认出武器的形状。
What would he do?
他会怎么做？
In the precious few seconds before they came into the room, how would he use them if not to cry out?
在入侵者闯进来前这珍贵的几秒钟，如果他没有哭喊出声，那他做了什么？
This little boy, this particular little boy, who reads all of those spy books, what would he do?
这个小男孩儿，这个读过许多间谍书籍的小男孩儿，会怎么做？
He'd leave a sign?
留下标记？
Get Anderson! Linseed oil. Not much use, it doesn't lead us to the kidnapper.
叫安德森来！亚麻籽油。没什么用，没有任何有关绑架者的信息。