“But the mere fact that they are hiding it is proof that they are doing something illegal,” commented Ken.

His two companions repeated the word, “Illegal! Illegal!”

Jack began to walk up and down, his chin in his hand and deep in thought. The other two were also silent and thinking hard. Jack picked up an old newspaper from the floor. Suddenly he dropped the paper, jumped high into the air and cried frantically, “I have it! I have it!”

His two friends leaped out of their seats, and ran up to him. “Well!” demanded Paul, for once impatient and curious. “What is the answer?”

“The answer is,” whispered Jack and then paused, “Counterfeiters!” he whispered.

Ken jumped into the air enthusiastically. “That’s right!” he cried. “That’s right!”

Paul smiled with satisfaction. Putting an arm around Jack, he said, “It sounds very reasonable. Counterfeiters have to use a printing press. And counterfeiters do something illegal and therefore have to hide.” He nodded his head. “Sounds very logical.”

They returned to their seats. “But,” continued Paul, “even if we grant the fact that they are counterfeiters, how do all the other incidents fit in? The fires and Mr. Grey for example?”

“Must they fit in?” inquired Ken.

“They don’t have to,” was Paul’s reply, “but I have a notion that they do.”