Avoid the humming
From Fallen London Wiki
| A player-created Guide is available for this content: The Stacks (Guide) |
| Spoiler warning! This page contains details about Fallen London Actions. |
From: Index, Indweller, Indicatrix
Where her humming leads, librarians are sure to follow.
Game Instructions: This will disable the Cartographer's cards and options in the Stacks. You can re-enable them here.
Unlocked with 
The Stacks: Mapping with the Cartographer exactly 1 (hidden)
Locked with 
Apocrypha Sought: ? (The Cartographer doesn't have a personal interest in your current quarry.)
Success
No reward narrative information available for Fate-locked actions.
Your 'The Stacks: Mapping with the Cartographer' Quality has gone! (hidden)
