Is there a map or explanation of what sections of Philadelphia were transferred?

[u/QuantumMirage]

Hi everyone, I just finished the first Oblivion Song volume and as a native Philadelphian I have some geography questions. Based on the artwork it looks like the entirety of downtown Philadelphia (colloquially known as "Center City") was transferred. The expanse beyond the Ben Franklin bridge would imply that parts of South Jersey were transferred as well (no big loss there). However, there are some shots in the "real world" that would be contrary to this notion, for example, Jefferson Hospital remaining intact. Unless the transference was somewhat patchwork, I don't think it works out. Or is it more of a "Stranger Things" like dynamic where there is a light/dark version of each area (which I assumed based on Jefferson being OK but the rest of Center City was toast). Any map or explanation?

[u/Space_Greg]

Yeah I have zero idea.... I'm just commenting on here so you don't feel lonely. I really like the comic and I'm excited to see where it will lead.