A MID THE HEAP OF BROKEN and dismembered farm implements in Jimmy Fagan’s shed, Katerina had found a scythe, rusted and caked in mud, a museum piece, perhaps the last scythe in the whole of Ireland, north or south. She held it tightly in her hands and listened to the sound of men pounding up the track at a sprint. Two men, she thought, perhaps three. She positioned herself against the shed’s sliding door. Madeline was at the opposite end of the space, hooded, hands bound, her back to the bales of hay. She was the first and only thing the men would see upon entry.

The latch gave way, the door slid open, a gun intruded. Katerina recognized its silhouette: an AK-47 with a suppressor attached to the barrel. She knew it well. It was the first weapon she had ever fired at the camp. The great AK-47! Liberator of the oppressed! The gun was pointed upward at a forty-five-degree angle. Katerina had no choice but to wait until the barrel sank toward Madeline. Then she raised the scythe and swung it with every ounce of strength she had left in her body.

Two hundred yards away, crouched behind a stone wall at the western edge of Jimmy Fagan’s property, Gabriel showed the text message to Christopher Keller. Keller immediately poked his head above the wall and saw muzzle flashes in the doorway of the shed. Four flashes, four shots, more than enough to obliterate two lives. A burst of AK-47 fire drove him downward again. Eyes wild, he grabbed Gabriel savagely by the front of his coat and shouted, “Stay here!”

Keller hauled himself over the wall and vanished from sight. Gabriel lay there for a few seconds as the rounds rained down on his position. Then suddenly he was on his feet and running across the darkened pasture. Running toward a car in a snowy square in Vienna. Running toward death.

The blow that Katerina delivered to the neck of the man holding the AK-47 resulted in a partial decapitation. Even so, he had managed to squeeze off a shot before she wrenched the gun from his grasp—a shot that struck the hay bales a few inches from Madeline’s head. Katerina shoved the dying man aside and quickly fired two shots into the chest of the second man. The fourth shot she fired into the partially decapitated creature twitching at her feet. In the lexicon of the SVR, it was a control shot. It was also a shot of mercy.