“Going to eat?” asked Merritt Hughes.

“Just about half a ton of food,” grinned Bob. “It seems ages since I had anything, yet it was only a few hours ago.”

“Charge that up to excitement,” replied his uncle, as they strode along together.

“Any news of the man who broke out of the police station?” There was a real note of anxiety in Bob’s voice.

“Not a word. He must have been a magician. The police are still combing the city, but I doubt if they’ll find him. He belongs to too clever a gang.”

“But where could he hide so securely in Washington?”

“An embassy, possibly,” shrugged the federal agent.

Bob’s eyes widened. It had never occurred to him that a representative of a foreign government would give shelter to a criminal. Yet he knew that any one of half a dozen foreign powers would give a great deal to possess the new radio secrets.

“Don’t take that suggestion too seriously,” warned Merritt Hughes, who guessed the trend of Bob’s thoughts.

He leaned closer to Bob. “This case is causing all kinds of trouble. The entire War Department is in a furore and I hear special intelligence officers are being assigned to see if they can’t ferret it out.”