He spent the next three days walking the streets, a ghost among ghosts. He talked to the shoe-shiners in the Zócalo, the taco vendors in Tepito, and the tired clerks in the city archives. He didn't ask for the man’s name; he asked for his habits. He learned the Gray Ghost liked his coffee black at Café La Habana and that he always carried a briefcase that looked heavier than it should.

Hector Belascoarán Shayne sat in his cramped office on Calle Independencia, the smoke from his cigarette curling around the ancient, rotary phone like a ghost. He wasn't just a Private Investigator; he was a "detective independent," a title that in Mexico City often felt like a fancy way of saying "professional target."

The warehouse went quiet, the only sound the distant roar of the city outside. In that moment, Belascoarán realized the Gray Ghost wasn't a villain in a grand conspiracy. He was just another tired man caught in the machinery of a city that forgot its own history as soon as the sun went down.

The trail led Hector to a dilapidated warehouse in the Industrial Vallejo. Inside, the air smelled of ozone and old paper. He found the Gray Ghost sitting at a metal desk, not with a gun, but with a shredder.