The Narrows Compact controls a critical smuggling corridor through Detroit's old salt mine tunnels — a network of passages running beneath the city that connects the waterfront to the interior districts without ever surfacing. In a city where surface movement is monitored by corporate drones and Axiom checkpoints, an underground highway is worth its weight in contraband. The Compact charges for access and provides guides through the maze of tunnels that would kill an unescorted traveler through collapse, flooding, or simply getting lost in the dark.

The crew numbers about fifty, split between tunnel guides, guards, and the maintenance workers who keep the passages navigable. They're led by a rotating council of three tunnel bosses, each responsible for a section of the network. The Compact is disciplined by necessity — one careless member could collapse a passage and destroy months of route maintenance. New members undergo a six-month apprenticeship learning the tunnel system before they're trusted to guide cargo or people.

The Compact smuggles everything: augments, weapons, drugs, data, food, medicine, and people. They don't discriminate by cargo — if it fits in the tunnels and the client pays, it moves. This moral flexibility has made them essential to Detroit's underground economy and simultaneously despised by everyone who's ever been victimized by the goods they transport. The Compact's response to moral criticism is a shrug: they move things from point A to point B. What happens at either end isn't their problem.

Their most lucrative service is people smuggling. Refugees, fugitives, corporate defectors, and anyone else who needs to move through Detroit without being seen pay premium rates for guided passage. The Compact has never lost a client in transit — their record is a point of genuine pride and their best marketing tool.