Then all was still below, although above the Chinamen chattered louder than ever.

"By Jove! the Chinks are going for the boy," cried Harry. "He has fallen into one of the secret dens of Pell street, sure!"

It looked like it.

The policeman came.

The Bradys turned electric flash lights into the hole.

It seemed to be a brick vault of considerable size.

But there was no one in it so far as they could discover.

Harry's repeated shouts to Ed brought no response.

"I must go down there and look for the boy!" cried Harry.

"Hold on," said the policeman, who was a person they knew; "if the Chinks have got him, they may get you, too. You know what Chinatown is."