so they could get group head-and-shoulders shots with the New York Stock Exchange lintel inscription floating overhead. Too much proximity, Froelich thought. Armstrong and the financial guys stared optimistically and resolutely into the middle distance, endlessly. Then, mercifully, it was over. Armstrong gave his patented "I'd love to stay" wave and backed away into the building. The financiers followed him and the photographers dispersed. Froelich relaxed again. Next up was a routine road trip back to Air Force Two and a flight to North Dakota for the first of Armstrong's handover rallies the next day, which meant she had maybe fourteen hours without major pressure.
Her cell phone rang in the car as they got close to La Guardia. It was her senior colleague from the Treasury side of the organization, at his desk in D.C.
"That bank account we're tracking?" he said. "The customer just called in again. He's wiring twenty grand to Western Union in Chicago."
"In cash?"
"No, cashier's check."
"A Western Union cashier's check? For twenty grand? He's paying somebody for something. Goods or services. Got to be."
Her colleague made no reply, and she clicked her phone off and just held it in her hand for a second. Chicago? Armstrong wasn't going anywhere near Chicago.
Air Force Two landed in Bismarck and Armstrong went home to join his wife and spend the night in his own bed in the family house in the lake country south of the city. It was a big old place with an apartment above the garage block that the Secret Service took over as its own. Froelich withdrew Mrs. Armstrong's personal detail to give the couple some privacy. She gave all the personal agents the rest of the night off and tasked four more to stake out the house, two in front, two behind. State troopers made up the numbers, parked in cars on a three-hundred-yard radius. She walked the whole area herself as a final check, and her cell phone rang as she came back into the driveway.
"Froelich?" Reacher said.
"How did you get this number?"
"I was a military cop. I can get numbers."
"Where are you?"
"Don't forget those musicians, OK? In Atlantic City? Tonight's the night."
Then the phone went dead. She walked up to the apartment above the garage and idled some time away. She called the Atlantic City office at one in the morning and was told that the old couple had been paid the right money at the right time and escorted to their car and all the way out to I-95, where they had turned north. She clicked off her phone and sat for a spell in a window seat, just thinking. It was a quiet night, very dark. Very lonely. Cold. Distant dogs barked occasionally. No moon, no stars. She hated nights like this. The family-house situations were always the trickiest. Eventually anybody got thoroughly sick of being guarded, and even though Armstrong was still amused by the novelty she could tell he was ready for some down time. And certainly his wife was. So she had nobody at all in the interior and was relying exclusively on perimeter defense. She knew she should be doing more, but she had no real option, at least not until they explained the extent of the present danger to Armstrong himself, which they hadn't yet done, because the Secret Service never does.
Saturday dawned bright and cold in North Dakota, and preparations began immediately after breakfast. The rally was scheduled for one o'clock on the grounds of a church community center on the south side of the city. Froelich had been surprised that it was an outdoors event, but Armstrong had told her that it would be heavy overcoat weather, nothing more. He told her that North Dakotans usually didn't retreat indoors until well after Thanksgiving. At which point she was almost overcome by an irrational desire to cancel the whole event. But she knew the transition team would oppose her, and she didn't want to fight losing battles this early. So she said nothing. Then she almost proposed Armstrong wear a Kevlar vest under his heavy overcoat, but eventually she decided against it. Poor guy's got four years of this, maybe eight, she thought. He's not even inaugurated yet. Too early. Later, she wished she'd gone with her first instinct.
The church community center's grounds were about the size of a soccer field and were bordered to the north by the church itself, which was a handsome white clapboard structure traditional in every way. The other three