A policeman entered, and Isaacstein bounced out of his chair.

"I have sent for you, constable, to take this boy into custody," he cried, excitedly. "He came here ten minutes ago and offered for sale a very valuable diamond, so rare, and worth so much, that he must have stolen it."

Philip, too, sprang up.

"It is a lie!" he shouted. "How dare you say such a thing when I have told you that it is mine!"

The policeman collared him by the shoulder.

"Steady, my young spark," he said. "Mr. Isaacstein knows what he is about, and I don't suppose he is very far wrong this time. Do you know the boy, sir?" he went on.

Isaacstein gave a voluble and accurate summary of Philip's statements. Each moment the policeman's grip became firmer. Evidently the boy was the mere agent of a gang of thieves, though it was beyond comprehension that anyone short of an idiot should choose an emissary with broken boots and ragged clothing in order to effect a deal with the leading house in Hatton Garden.

Philip listened to the recital in dumb agony. His face was deathly pale, and his eyes glowed with the rage and shame that filled his soul. So the Jew had been playing with him, merely fooling him until some secret signal by an electric bell had sent a messenger flying for the police. His dream of wealth would end in the jail, his fairy oasis would be a felon's cell. Very well, be it so. If he could help it, not all the policemen in London should rend his secret from him. With a sudden glow of fiery satisfaction, he remembered that his clothing contained no clew to his address, and he had not given his name either at Ludgate Hill or Hatton Garden. How long could they keep him a prisoner? Would others find his meteor and rob him of his mother's gift? In less than a fortnight men would come to tear down the buildings in Johnson's Mews. Well, it mattered not. The courage of despair which nerved him the previous night came to his aid again. He would defy them all, careless of consequence.

The policeman was saying:

"It's a queer affair, sir. Did he really say he had lots more of 'em?"