There it came again! She could not lie still and ignore it.

She got out of bed, and with rather shaking knees walked on to the landing and peeped over the banisters.

There was a tiny oil-lamp hanging on the wall; it faintly illuminated the stairs.

Was that somebody moving about in the darkness of the hall?
If it was a burglar, he certainly must not come upstairs, or she would die of fright.

An idea occurred to her, and acting on a sudden impulse she dashed into Dormitory 2, roused the others, and told them to snatch what missiles they could, and hurry to her aid.
"We'll fling things at him if he tries to come up!" she gasped, groping for her boots.
It was a horrible experience: four nervous, quaking girls stood in the dim light on the landing gazing down into the haunted blackness of the shadowy hall.