The first attack came three days after Prague.

A car bomb in Paris. Outside a Council member's office. Timed for morning arrival. The member survived. His driver didn't.

Message left at the scene. Spray painted on the wall. "This is just the beginning. -VK"

The second attack. Two days later. Berlin. Sniper shot through a window. Killed a Council security chief. Clean. Professional. No trace.

Another message. This one emailed to multiple Council members. "You cannot hide. I will find you all."

"He's escalating," Franz said during an emergency conference call. "Picking us off one by one."

"We need to find him," Dante said. "Mobilize everything. Every contact. Every intelligence...