Place file
The London Underground
Working transport infrastructure becomes investigative territory beneath the city.
First met in
First met in this guide: Whispers Under Ground. This is a starting reference, not a complete appearance index.
Audiobook details and listening option for Whispers Under Ground →
Related files
Later in the series · possible spoilers
London-wide. The guide is still checking later book-level references for this file; no unverified plot claim is presented here.