In the high-stakes business of World War II, the British government made a secret investment in an audacious enterprise known as Operation Tracer. The plan was to secure the valuable Gibraltar property, a key chokepoint for Mediterranean trade. Six men, including doctors and radio experts, volunteered for this opportunity, a mission with no return that would require them to be sealed inside the Rock to spy on enemy movements should Gibraltar fall. This secret chamber was a marvel of grim innovat