Engelheim is the place where things pass through. The old 63rd and Halsted transit hub — once the commercial heart of Englewood — has been rebuilt, expanded, and rebuilt again into a multi-level transit interchange that connects the southern Shelf districts to the Meridian Core's lower tiers. Four maglev lines converge here, plus a surface-level bus grid and an informal network of unlicensed transit vehicles that fill the gaps the official system refuses to serve. The interchange is the district's heart, its economy, and its curse: everything flows through Engelheim, but very little stays.

The transit nexus dominates the landscape. Its upper levels are corporate-managed space — Helion Transit Authority signage, functioning surveillance, automated fare enforcement, and the particular sterility of infrastructure maintained for throughput rather than habitation. Below the fare gates, the station's lower concourses have become a permanent market and gathering space — the kind of informal settlement that grows in transit infrastructure the way moss grows on stone. Vendors sell food, repairs, information, and temporary shelter in the corridors beneath the platforms. The transit police nominally patrol these lower levels but have reached an unspoken accommodation with the market operators: commerce continues as long as the trains run on time and nothing happens that generates a report.

Around the nexus, the district radiates outward in concentric rings of decreasing investment. The blocks immediately adjacent benefit from foot traffic and transit access — small businesses, flophouses, clinics, the services that travelers need. Two blocks out, the investment drops sharply. Three blocks out, Engelheim begins to resemble West Engelheim — vacancy, improvised shelter, the architecture of disinvestment. The targeted reinvestment that characterized pre-Consolidation Englewood has been replaced by targeted extraction: the transit hub generates revenue that flows upward through Helion's balance sheets while the surrounding neighborhood receives exactly enough maintenance to prevent the kind of collapse that would interrupt service.

Engelheim has a reputation as a dangerous district, and it is — but the danger is specific rather than general. The transit nexus itself is relatively safe, because too many corporate interests depend on its function. The danger lives in the rings beyond the nexus, where the jurisdiction is muddled and the population is transient enough that disappearances go unrecorded. Fixers, runners, and street operators use Engelheim as a waypoint precisely because of this transience — it is easy to arrive, conduct business, and leave without establishing a pattern. Kyle has passed through Engelheim more times than he can count. Everyone has. That is its nature: a place defined by passage, not by presence.