Bogart turned off the lights and nodded to Milligan, who hit some keys and a screen affixed to the far wall came to life.

“Harry Potter and the Prisoner of Azkaban,” said Bogart. “We found some things I don’t think J. K. Rowling intended to be in there.”

The three sat down and Bogart said, “Dial it up, Todd.”

Milligan hit some more keys and a page from the book showed up on the screen.

“I don’t see anything,” said Jamison.

“Wait a minute.”

Milligan hit some more keys and suddenly various letters on the page started to shimmer.

“They’re fluorescing,” exclaimed Jamison.

“Yes. We had to try a lot of different interactive light sources, but we found one that worked.”

“But they’re different colors,” said Jamison. “The letters are different colors.”

“We think we figured that out. If they used this book over a long term, they would have to send separate messages. The different colors are a way for the receiver to know that. The blue you see is one message. The red another. We don’t know which is more recent, but we think that’s how it works.”

“But what does it say?” asked Decker.

“It’s not that simple. The letters don’t add up to anything that makes sense. Our code breakers are looking at it and we’ve asked for assistance from both NSA and DIA. It might take a while, but at least we know they were passing coded messages this way.”

“Between Berkshire and Jenkins,” said Decker.

“Right. She obtained the secrets, encoded them here, and then he used a special light to reveal the letters, copied them down, and decoded it. Then he would send it up the line to whoever he’s working for.”

“Pretty clever to use a hospice that way,” said Decker.

“You mean pretty cruel,” added Jamison.

Bogart said, “This way Jenkins and Berkshire would never even have to come into contact. They just used the book.”

“You think they used this method to communicate the secrets that Dabney stole?” asked Jamison.

“I don’t know for certain, but it’s a pretty safe bet they did.”

“And yet Dabney murdered Berkshire. Why?”

“We do keep coming back to that,” agreed Bogart. “Remorse for what he’d done?”

“But we can’t show that Dabney and Berkshire actually even met,” said Decker.

“Well, they could have met at a secret location. Maybe the old house in the woods?”

Decker said, “So he sells her the secrets. The amount he thinks is ten million, but it’s actually a lot less than that. He doesn’t even see the money transferred. He knows it went, though, because his daughter and her family are still alive. Then he gets remorse, like you said, and kills Berkshire and then himself. But why out in the open like that? And why would Berkshire have agreed to meet with him near the Hoover Building? That was probably the last place she would want to go. I mean, wouldn’t she have maybe smelled a setup?”

“Maybe not,” rejoined Bogart. “I mean, he’d just done a deal with the woman. She might have thought he wanted to do another.”

“A spy who uses a subterfuge like a book at a hospice so she doesn’t even have to meet another spy she’s been working with for a long time decides to do a face-to-face with a guy she’s maybe done one act of espionage with near the headquarters of the American agency tasked with catching spies?” He looked at Bogart. “Really, how much sense does that make?”

“Not much,” conceded Bogart. “But it happened.”

“No, maybe it didn’t,” replied Decker.

CHAPTER

59

“CISSY’S DEAD?”

Decker stared across at Natalie.

She had been formally charged, had lawyered up, and was being held because she was considered a flight risk. Because of the sensitive nature of the case, the sole court proceeding conducted so far had been done in the judge’s chambers.

The woman looked like she had aged ten years since they had stopped her from flying out of Dulles.

Decker nodded. He had asked to meet with Natalie alone. The others were waiting in another room.

“She was executed, actually.”

“Why would anyone do that to her? She was our housekeeper.”

“Since you were little?”

“Yes. Cissy had worked for my parents since as long as I can remember.”

“Well, someone did kill her.”

“But why do you think it’s connected to our family?”

“I don’t know for certain that it is. But I have to check out the possibility. It is a little coincidental, you have to admit.”

Natalie nodded. “I guess it is. Do my mom and sisters know?”

“Yes. They all took it hard.”

“No.”

“But did you suspect?”

She said slowly, “I didn’t know their net worth, but I didn’t think they had that sort of cash lying around. Maybe mort

gage the house.”

“Maybe sell secrets?”