Keller slipped the gun and the cardkey into his briefcase. Then he placed his overnight bag in the trunk of the BMW and headed up the ramp to the street. The Kempinski was a hundred meters farther along the Fasanenstrasse, a big hotel with Vegas-bright lights over the entrance and a Parisian-style café overlooking the Kurfürstendamm. At one of the tables sat the Libyan. He was accompanied by a man of perhaps sixty and a once-beautiful woman with coal-black hair and Cleopatra makeup. The man looked like an old comrade from the court of Gaddafi; the woman looked well cared for and very bored. Keller assumed she belonged to the Libyan’s friend, for the Libyan liked his women blond, professional, and pricey.

Keller entered the hotel, aware of the fact that several surveillance cameras were now watching him. It didn’t matter; he was wearing a dark wig and heavy false spectacles. Five hotel guests, new arrivals, judging by the look of them, were waiting for an elevator. Keller allowed them to board the first available carriage and then rode to the fifth floor alone, his head lowered in such a way that the surveillance camera could not clearly capture the features of his face. When the doors opened, he stepped out of the carriage with the air of a man who was not looking forward to returning to the loneliness of yet another hotel room. A single member of the housekeeping staff gave him a drowsy nod, but otherwise the corridor was empty. The cardkey was now in the breast pocket of his overcoat. He removed it as he approached Room 518 and inserted it into the slot. The green light shone, the electronic lock disengaged. The Gambian would live another day.

The room had been recently serviced. Even so, the stench of the Libyan’s appalling cologne persisted. Keller moved to the window and looked into the street. The Libyan and his two companions were still at their table at the café, though the woman appeared restless. In the time since Keller had seen them last, their plates had been cleared and coffee had been served. Ten minutes, he reckoned. Maybe less.

He turned from the window and calmly surveyed the room. The Kempinski thought it superior, but it was really quite ordinary: a double bed, a writing desk, a television console, a royal-blue armchair. The walls were thick enough to smother all sound from the adjoining rooms, though not thick enough to withstand a normal bullet, even a bullet that had penetrated a human body. As a result, Keller’s HK was loaded with 124-grain hollow-point rounds that would expand on impact. Any round that struck the intended target would remain there. And in the unlikely event Keller somehow missed, the round would lodge harmlessly in the wall with a dull thud.