Chicago’s freight tunnels are a concealed underground route that Danny Hartman uses both to move unseen and to draw his pursuers into a space where he controls what can be seen. Their importance lies in that double function: the tunnels help explain how a killer could evade witnesses and security cameras, then become the setting for Danny’s attempt to frame Jason Crowder for another murder.

Setting and Access

Danny describes the tunnels as part of a city honeycombed with passageways, distinguishing them from the sewer system when Father Patterson wonders what lies beyond an open doorway. The freight tunnels are reached by a stairwell, and Danny says that although the city sealed them in most places, a person who knows Chicago can still find ways in. That distinction matters: the tunnels are not presented as an openly accessible extension of the streets, but neither are they entirely closed. Their few remaining entrances reward local knowledge and offer an alternative route through the city beyond ordinary public view.

The route down is a shift in both level and visibility. Danny leads Father Patterson, Tyler Raines, and Crowder away from the crowd above, down the steps, and into a corridor so long and dark that Crowder’s flashlight seems unable to master it. The ordinary city remains overhead, but the group has entered a space where the light reaches only a small portion of the way ahead. The tunnel’s physical concealment gives Danny an immediate advantage: he can choose the route, control the pace, and speak to Crowder before the others catch up.

The Tunnels as a Murder Route

The tunnels also answer a question raised by the investigation into Mary Ellen Alspaugh’s murder. Liz Hartman had reasoned that the killer could not simply have walked away from the scene: there were many witnesses nearby and security cameras throughout the area. The killer, she concluded, must have had a secret way in and out. As Danny takes the group underground, Crowder recognizes the implication and accuses him of using the tunnels on the night he killed Alspaugh. The hidden route thus changes the tunnels from background infrastructure into a piece of the murder’s practical explanation. It offers a way to reconcile the apparent difficulty of leaving a watched crime scene with the killer’s ability to escape detection.

Crowder’s accusation comes dangerously close to breaking his pact with Malephar. Danny freezes several steps ahead, but Crowder’s own pain and the risk of speaking too plainly make the discovery more than a deduction: it puts Crowder under pressure at the very moment he is trying to expose Danny. The tunnels conceal the killer’s movements, but they also narrow the distance between suspicion and confrontation.

The Underground Confrontation

Danny has brought the others below under the pretext that the tunnels offer privacy. When Crowder warns him that harm to Liz would expose him as the killer, Danny answers with a threat rather than an explanation. The darkness makes the exchange feel dangerously intimate: Danny sets his flashlight on the crumbling floor, its upward beam lighting his face while Father Patterson and Raines approach from behind. The tunnel’s limited light and restricted passage give the confrontation a staged quality, but the threat is real and the others remain close enough to be drawn into it.

Danny then knocks Father Patterson down and slashes Raines’s throat with a long, curved knife. As Raines collapses, Danny wipes the handle and places the knife in Crowder’s hand, declaring that Crowder attacked him and that he will shoot in self-defense. The tunnel’s isolation serves the attempted frame: Danny can manufacture the evidence, put the weapon into Crowder’s possession, and prepare to tell a version of events in which the priest is the aggressor. Crowder lunges, but Danny strikes him in the stomach; the fallen flashlight throws its beam onto Raines, still on his knees and trying to hold his bleeding throat. In this cramped sequence, the darkness does not merely hide Danny. It helps him arrange what the approaching witnesses might believe they saw.

The Deeper Infrastructure and Its Significance

After the confrontation, Crowder gets to his feet and runs through a slimy concrete tube with ankle-high water. He identifies it as part of the Deep Tunnel Project and recognizes a light downstream as being near the Jewel Reservoir. The passage is not identified as one of the freight tunnels; rather, the novel places Crowder in another layer of Chicago’s underground infrastructure. Here, concealment becomes an immediate physical danger. The current could carry him through the tunnel and out into the reservoir, where a fall would be fatal, leaving him to search upstream for a way out while Danny approaches from behind.

Taken together, the freight tunnels and the later Deep Tunnel passage show how the novel makes the city’s hidden routes part of the action rather than mere scenery. Aboveground witnesses and cameras complicate escape; belowground, access depends on knowledge, darkness limits perception, and the water itself threatens to turn a route of flight into a deadly channel. The freight tunnels first help explain how Danny could move unseen, then furnish the secluded setting for his attack and attempted frame of Crowder. Their narrative force comes from that reversal: the concealed route that seems to offer cover also carries the characters toward a confrontation in which every restricted sightline can be used against them.