“The elevator doors whisked open on the eighteenth floor. The killer padded down carpeted hallways past plush offices, seeing no one. The last person had left hours ago.

The girl had walked these same hallways, only minutes before.

A metal door led to a flight of cement stairs, and then out onto the rooftop. The killer stopped there, drinking in the sight.

The girl stood at the edge of the roof, facing away, staring out at a breathtaking view of the city. Half-lit skyscrapers marched out to the bay, glimmering in the moonlight.

The killer waited. The girl would not turn. Her instructions were to remain facing away, and she would follow them.”