"Mr. Cornell, we'll waste no time. We want to know how well you know Doctor James Thorndyke."
I didn't blink at the bluntness of it. It is standard technique when an esper-telepath team go investigating. The telepath knew all about me, including the fact that I'd dug their wallets and identification cards, badges and the serial numbers of the nasty little automatics they carried. The idea was to drive the important question hard and first; it being impossible to not-think the several quick answers that pop through your mind. What I knew about Thorndyke was sketchy enough but they got it all because I didn't have any reason for covering up. I let them know that, too.
Finally, #That's about all,# I thought. #Now—why?#
The telepath half of the team answered. "Normally we wouldn't answer, Mr. Cornell, unless you said it aloud. But we don't mind letting you know which of us is the telepath this time. To answer, you are the last person to have received any message from Thorndyke."
"I—what?"
"That postcard. It was the last contact Thorndyke made with anyone. He has disappeared."
"But—"
"Thorndyke was due to arrive at The Medical Research Center in Marion, Indiana, three weeks ago. We've been tracking him ever since he failed to turn up. We've been able to retrace his meanderings very well up to a certain point in Yellowstone. There the trail stops. He had a telephoned reservation to a small hotel; there he dropped out of sight. Now, Mr. Cornell, may I see that postcard?"
"Certainly." I got it for them. The esper took it over to the window and eyed it in the light, and as he did that I went over to stand beside him and together we espered that postcard until I thought the edges would start to curl. But if there were any codes, concealed writings or any other form of hidden meaning or message in or on that card, I didn't dig any.
I gave up. I'm no trained investigator. But I knew that Thorndyke was fairly well acquainted with the depth of my perceptive sense, and he would not have concealed anything too deep for me.