Silas was born William Silas Walker on 9 Walker Street in Liverpool’s Central Commercial Districtthe same street where he still lives above a tobacconist’s shop. His father, George Thorne, was a stoic Royal Navy engineer who served in the Battle of the Atlantic; his mother, Margaret, a district nurse who tended to dockworkers and factory girls. The family was working-class but proud, valuing precision, quiet dignity, and the belief that “truth is found in the details.”

The War Years (1940–1945)  

At 20, Silas was deemed unfit for frontline combat due to chronic asthma (a result of childhood pneumonia). Instead, he was recruited into Military Intelligence, where his analytical mind found its calling. By 1942, he was stationed at Bletchley Park, working in a sub-section focused on pattern recognition in enemy logistics deciphering shipping manifests, supply routes, and coded requisitions. It was here he mastered shorthand, probability theory, and the art of reading between the lines.

But his real baptism came in 1943, when he was seconded to Special Operations Executive (SOE) as a forensic liaison in occupied France. Posing as a Belgian textile merchant, he helped identify collaborators by analyzing fabric traces, ink types, and handwriting in forged documents. During a mission in Lyon, his unit was betrayed. He watched three comrades executed in a courtyardshot in the back of the head, their bodies left as warnings. Silas escaped by hiding in a sewer for 36 hours, emerging covered in filth but alive.

That night, he made a vow: No truth would be buried on his watch.