A Little Bit of Thievery

From publisher blurb:

A Little Bit of Thievery is an unconventional freeform adventure for level 1 characters. The players are contracted to steal a magic item at a noble's fancy party, and are forced to abandon their weapons and rely on their wits to survive. Mayhem required and violence (mostly) optional. Success might bring the ire of an elite with a panache for vengeance and money to burn. Beats killing giant rats in the safety of a basement for a few silver pieces, right?

Although it is specifically written for the 5th edition’s basic rules, the adventure can be dropped into any rules system or campaign with minimal modification.