“And yesterday, we received these,” Lindley said, passing around two more photos. “They’ve already been DNA-tested and matched to Ethan and Zoe, respectively.”

The new images were of a boy’s white oxford shirt and a pair of thick-soled red boots, the kind a girl like Zoe might wear to school.

“Any formal theories?” someone asked.

“Actually, I was going to ask Detective Cross for his take on all this,” Lindley said. Everyone turned to look at me, probably in time to catch the surprise on my face. “I know you’ve only been working around the edges so far,” Lindley said. “I don’t mean to put you on the spot here.”

“It’s fine,” I said. At least I knew why I’d been brought in now. I’ve done as much profiling for the FBI as anyone in Washington. The pictures were all passed back my way, and I looked at them as a set.

“First thoughts?” I said. “The note’s unequivocal — no ransom, no demands, period. So then the next question, Why send the second package?”

“Maybe just to string us along?” one of the Bureau wonks contributed the obvious. “Flaunt an advantage. Hang it over our heads. Show off.”

“I think that’s probably true,” I said. “But there’s a personal element here that’s directed at the president. He’s the one named in the note. If someone wanted to make him suffer, the best way to do that would be to draw this search out for as long as possible.”

“Go back a second,” Stroud said. “When you say this is personal, are you suggesting it’s also an individual act? Is this one man’s vendetta against the president?”

I thought about it before I answered, but my first impulse didn’t change.

“If you want my best guess,” I said, “yes. That’s what this feels like to me. But for the sake of argument, terrorism can be very personal, too, even in the name of a larger cause.”

“Especially in the name of a larger cause,” Fatany said. “Most of these shits take what they’re doing very personally. They’re willing, even eager, to die — as we’ve already seen.”

Lindley started to move on, but I jumped back in when one other thing occurred to me.

“This is above my pay grade — but I’d also recommend keeping President Coyle out of the public eye, if that’s not already in the plan,” I said.

“Why is that?” Stroud asked, although I think he already knew the answer.

“If I’m right, it deprives the kidnapper, or kidnappers, of a primary motivation. Don’t let them see the president dealing with this. That’s probably exactly what they want. To humble the United States president in front of a world audience.”

One of the Secret Service reps cleared his throat. “The president and First Lady are in a secure location,” he said. “We’ll keep Detective Cross’s recommendation under advisement, but any decisions about that kind of thing —”

Just then, a familiar voice came into the room from an unseen speaker.