Try the Pickpocket's Promenade! 2
From Fallen London Wiki
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From: The Alleys of Spite
Action Cost: 0
Melt into the crowd to separate victims from their valuables.
Unlocked with 
Shadowy 10-60, 
Discovered: the Crowds of Spite (hidden)
Locked with 
A Name Whispered in Darkness 4
Success
A little light-fingered legerdemain
The streets of Spite bustle with citizens, about half of whom have pockets. Some of those pockets contain precious, pretty things.
Success Instructions: Open the map and go to the Crowds of Spite location to learn more.
