He crept along the passage, which appeared to be of considerable length, at last coming upon three steps leading down to a door.

And now the boy caught the sound of strange music.

Some one was strumming on a banjo.

The tune was most monotonous, just the same thing over and over again.

"Chinese music," thought Ed. "That's one of their big moon banjos. I suppose I may as well go back. I'll only get myself into trouble if I try to butt in here."

But the music seemed to fascinate him, and he found it hard to pull away.

Creeping down the steps, he stood for some moments listening at the keyhole.

Feeling at last as if it really would be better for him to go, he was just about to pull away when, as he turned, the lantern hit hard against the door.

Instantly the music ceased.

Scared, Ed bounded up the steps and retreated along the passage.