As if in answer came a signal from the outside of the house.

But after what seemed like enough time, the signal still hadn't come.

So how and when did the signal ever come to be sent to begin with?

He would have to make sure the signal never came.

Half an hour later the signals came in a series.

In four and a half minutes the signals came again.

When a signal comes in good and clear, tell me.

He knew they must be in place when the next signal came through.

"What were you thinking of a few minutes before that signal came in?"

No signals were coming in from my left eye now.