“I assume that you have no desire to poison me.”

“Sure, we’ll say that.”

“Do you want me to do that?” she asked.

“I’m just going to scramble some eggs. Why don’t you have a look through those files they left us.”

Ten minutes later he walked out with two plates loaded with eggs and toast balanced on top. She looked at the plate he set in front of her. “Make enough?”

“With you I never know when I’m going to get to eat again.” He picked up his fork. “Anything in the files?”

She took a bite of toast and pulled a photograph from the back of the file. “Here’s that shot of Calculus’s message.”

She watched him carefully as he laid it on the table next to his plate and studied it while he continued to eat.

To Moscow unexpectedly. Find CDP now!

Finally she said, “Do you think CDP is our ‘little fish’?”

Vail continued to eat, staring at the message. “It has to be. He uses only three words to notify us of his possible impending death: ‘To Moscow unexpectedly.’ Someone that economical wouldn’t waste the last three words on something meaningless. He used exactly the same number of words to indicate that they’re as important as the first three.”

“Why would he care whether we found the spies if he knew he was going to be taken back there and tortured, and probably worse?”

Again Vail was lost in thought. She took a mouthful of eggs and watched him as he ate absentmindedly. Finally he said, “This is good. Very, very good.”

“The eggs?”

“Your question about him caring. It could be the key to unlocking this. He shouldn’t care. Yet he sent us the first mole’s initials. Why?”

“Maybe he figured since he was being sent back to Moscow, he’d give us the first name hoping we’d send the money to the Chicago bank and it would get to his family or whoever.”

“That’s a possibility. Here’s another one: What if he planned for this contingency? He knew that if the Russians get it out of him about the list and recover what he’s hidden for us, they’ll have all they need to convict him of treason and execute him. But if he can get us to whatever evidence he left for us, before the Russians can recover it, they won’t be able to prove a thing. Maybe he’s in Moscow right now enduring torture to give us whatever head start he can.”

“It’s urgent, I get it. But first we have to find this CPD. How do we do that? Like Kalix said, there’s got to be a lot of people with those initials.”

“Another good question. Unfortunately, one that is going to require a little sleep to answer. I hate to waste the time sleeping, but it’ll be a good investment.” Vail picked up his plate and asked her, “Are you done?”

“Yes, thanks.”

“Can you be back here in four hours?”

“Seeing how the alternative is to let you go wandering off with a new set of credentials and a gun, and then having to answer to the director, I guess I’ll have to.”

Almost to the minute, four hours after leaving him, Kate pulled up in front of the old Bureau observation post. It was midafternoon, but the temperature was still near freezing. She took his suitcase out of the trunk and carried it upstairs. He was in the room where the meeting with the director had taken place. He had shaved and showered and was reading one of the files that had been provided.

“It didn’t take you long to get back at it. Anything in there?” she asked.

“There is one interesting thing. The cell phone they gave Calculus, it tracked him twenty-four hours a day. We have detailed coordinate charts telling us where he went and when.”

“Nothing else?”

“Not yet, but I’m already getting the feeling I’m missing something.” He stood up and went over to a computer that was on. “Take a look at this. You’ve probably seen it before.”

She peered over his shoulder. “Sure, that’s a spy satellite we have access to. How’d you know about it?”

“I kept reading in the file about transverse tracking. When I turned on the computer, I saw the icon on the desktop.” She sat down in a chair next to him. “I looked through those cell-phone GPS logs. I think they’re important.”

“Important how?”

“Take a look at his message again.” He handed her the file. “How do the last three words differ from the first three?”

To Moscow unexpectedly. Find CDP now!

“The exclamation point?”

“And . . . ?”

She looked for a few seconds and then shook her head in frustration. “I don’t know, what?”

“Look at my hand,” he said, holding it with the fingers spread as wide as possible. “Now look at the message again.”

She did and then said, “It looks like there’s an extra space between the ‘CPD’ and the word ‘now.’ ” She thought about it a little longer. “I still don’t get it.”

“I made some coffee. Would you mind getting me a cup?” His voice was more instructional than demanding.

Her face shortened into a knot of confusion. “Oooo-kay.” She went into the kitchen and started pouring coffee into a mug. “Black?” she called out to him. Before he could answer, she yelled, “The last sentence contains a message within a message!” Forgetting the coffee, she hurried back into the room. “If he didn’t mean anything by it, the exclamation point would been after ‘To Moscow unexpectedly,’ to emphasize the danger he was in. But using it with ‘now’ and isolating it with an extra space indicates that there are two messages within those last three words: Find CDP and an instruction to do it now, at that exact moment.” She grinned, realizing that Vail had sent her to get coffee so she would stop staring at the forest and be able to isolate one of the trees.

“And what are we in possession of that can quantify ‘now’?” he asked.

This time Kate let her mind go blank before trying to figure out the answer. “The exact time he sent the message.”

Vail said, “And since we have his exact longitude and latitude when he sent it, he might have been giving us a clue to who CDP is.”

“But he would have to know that the phone we gave him was capable of tracking his movements.”

“First of all, he’s an engineer, an engineer in the spy business—don’t you think he would assume that? Why would we give him just an ordinary satellite phone? Plus, the phone was turned on. He’d have to know we could track him then.” Vail handed her the file; it was opened to the GPS charts. He turned back to the computer and the satellite imaging. “The call was made on December twenty-ninth at 4:18 P.M. Give me the coordinates listed for that time.”

As she read them, Vail maneuvered the mouse over a map of the United States until the digits in the small display windows were the same as those she had given him. He locked them in and then used the on-screen control to zoom down to the location, which could be seen with incredible detail, close enough to capture the address from an adjoining map on the screen. “It’s some sort of business. There are dozens of cars in that front parking lot alone.”

“Here, let me,” Kate said.

Vail got up, and Kate sat down at the computer. She went to a different search engine and typed in the address. A corporate profile popped up on the screen. “Alliant Industries in Calverton, Virginia.” She clicked on another icon and was shifted into Bureau indices and searched the name. “There it is, Alliant Industries. They’re in our files because we’ve done quite a few background investigations on their employees for security clearances. Evidently they have some defense contracts.”

“Can you pull up the list of names that we’ve investigated?”

“Hold on.” She typed some more, waited until the results came up on the screen, and then started scrolling through the alphabetical list. “Believe it or not, there are two with the first initial C and last initial P: Claudia Prinzon and Charles Pollock. Let me see if I can find middle initials.”

She started to open the background report on the woman when Vail said, “Don’t bother. It’s Pollock.”