"It’s a kill switch," Leo breathed. "If the engine detects a specific harmonic vibration—like the one The Dane’s fleet would make driving in formation—it blows the turbocharger seals and dumps raw fuel into the exhaust. The car becomes a 600-horsepower flamethrower aimed at the driver."

Nina pocketed the drive. "The board doesn't know that I kept a copy of the master key. By tomorrow, every major tuning shop in Europe will have Damos A2L.977-HIVE. The kill switch becomes public knowledge. The cars become safe again."

"Nina Voss," she said, stepping into the light. "I used to write Damos files for Bosch."

"I don't have Damos for this ECU," Leo admitted. "Nobody does."