The Gotham Map, Infiltrated
From the GPD SID "Memo"
From St. Swithuns
From St. Swithuns
Shown at right are the map pieces found by the Joker's accomplices, with their origins indicated.
It appears that one Superherohype poster, "SilentType", compiled the remainder of the map with an archived version scanned from a Gotham book studying the possible beginnings of Batman.
The compiled map aided the extensive online group in several Joker exercises: