"Hey there, you look like a sturdy fellow! Interested in a treasure map? Only a few gold coins and this map to an ancient ruins secret room can be yours!"
A Basic Dungeon Crawl that starts with a map.
In addition to the Thieves' Guilds, there is a hierarchy that all thieves are part of. Rank is based on skill, and can be raised or lowered at any time. The Queen of Thieves, the greatest living thief in the world, is the ruler. Guildmasters answer only to her, and she answers to no one at all.