“The Marines are only supposed to guard the embassy itself. If they start leaving the premises, Scotland Yard will throw a fit. And I’ll be back on the treadmill in the gym.”

“There’s no law against American Marines running in Hyde Park—at least, not yet. I suppose if Red Ken has his way there will be soon.” He tossed the newspaper onto his desk. “What’s on your calendar for today?”

“A conference on African health care issues and afternoon tea at the Houses of Parliament.”

“Still glad we came to London?”

“I wouldn’t have traded it for the world.” She stood up and headed toward the door. “Give my best to the foreign secretary.”

“Don’t forget drinks at Downing Street.”

“I won’t forget.”

Elizabeth left her father’s office and rode the elevator down to the atrium. Four other people, attired as she was in cold-weather athletic suits, were already there: Jack Hammond, the embassy’s public affairs officer; Alex Baker, an FBI special agent who served as legal affairs liaison, Paul Foreman from Consular, and Chris Petty from the State Department’s Bureau of Diplomatic Security. Petty served as London’s Regional Security Officer, which meant he was responsible for the safety of the embassy and its staff. Two of Petty’s assistant RSOs arrived a moment later. Their matching blue tracksuits did little to conceal the fact that they were powerfully built and well armed.

“Where’s Kevin?” Elizabeth asked.

Kevin Barnett, the CIA’s deputy chief of station, rarely missed the morning run when he was in town.

“Stuck in his office,” said Chris Petty.

“Anything to do with that NCTC alert?”

Petty smiled. “How did you know about that?”

“I’m the ambassador’s daughter, Chris.”

Alex Baker looked at his watch. “Let’s get rolling. I have a nine o’clock at New Scotland Yard.”

They headed outside and slipped through a gate in the north fence reserved for embassy personnel. A moment later they were jogging west along Upper Brook Street, heading for Hyde Park.