At the same moment, he caught a doubtful gleam of two eyes looking in at him from one of the windows.
That moment the place became insupportable with horror.

The vague sense of an undefined presence turned the school of science into a charnel-house.

He started up, hurried from the room, feeling as if his feet took no hold of the floor and his back was fearfully exposed, locked the door, threw the key upon the porter's table, and fled.

He did not recover his equanimity till he found himself in the long narrow street that led to his lodgings, lighted from many little shop-windows in stone gable and front.
By the time he had had his tea, and learned a new proposition of Euclid, the fright seemed to lie far behind him.

It was not so far as he thought, however, for he started to his feet when a sudden gust of wind shook his windows.