Felix locked eyes with the man across the street. After a few silent seconds, the stranger turned around and began walking away, his steps slow and deliberate.

Felix then followed the man without a word—there was no need for conversation. Both men knew exactly what this encounter was about.

They passed through two intersections before the man turned into a narrow alleyway. By the time Felix stepped in, the stranger was already waiting for him.

"Do we know each other?" Felix asked.

The man