About ten minutes later, the government agent arrived. He looked like a changed man, dressed in a summer linen suit and his hair combed neatly back. “Hello, fellows,” he greeted as he entered.

“Hello, Mr. Grey,” returned Paul. “Won’t you sit down?”

“Well, I’ll try,” he said as he took a seat, “but I’m afraid you fellows are going to question me so much, you’ll have me standing on my head.”

“Then we’ll turn you over and sit you down again,” spoke up Jack.

“Now, Mr. Grey,” began Paul, “and by the way, is that your real name?”

“No, of course not. My name is George Wilson.”

“Well, Mr. Wilson, we are mystified by a certain little thing,” continued Paul, “and I wonder if you can clear it for us.”

“Try me and we’ll see.”

“The mystery of the white card,” Jack blurted out. “What is it all about?”

“What white card?” asked the agent mystified.