It seemed to him as if he had had an experience whose effects would not be easily shaken off.

He had seen no ghosts, but he had felt them, and that was quite enough.
The sensation he had undergone was unmistakable; the hall was full of ghosts, and he had been conscious of their presence.

This, then, was apparently what Lubin had alluded to.

Oh, it was all real enough--there was no room left for any doubt whatever.
It was a quarter to five when he took leave of his entertainer, responding warmly to an injunction to look in again whenever he felt disposed.

He walked very thoughtfully homewards, revolving many questions in his busy brain.