The Validator: One Signature Can Trigger a War

When a covert Russian “validator” uses legitimate Western contacts to build a deniable corridor of influence and sabotage, Jack Copeland is thrown back into the field to tear it down before it bankrupts nations and sparks a North Atlantic showdown.

Hunted by a ghost operator known as Nightjar and racing against political collapse on both sides, Copeland must expose the enablers, survive the extraction, and shut the corridor - before it shuts him.