From Tiny Acorns

From Tiny Acorns is the first caper Guildmaster Darren Lightfinger will assign a player who has completed the Buyers and Cellars quest. Level 24 Thieving is required for the caper.

Capers are tasks set by the thieving guildmaster in order to slowly build and fund the Thieves' Guild.

The first caper of the thieving guild was released on the 28th of April 2010 at the same time as the guild (as all currently existing capers were), and requires you to steal a toy dragon made of rubies. Talk to the Guildmaster (Darren) to start.

Walkthrough
After obtaining the caper from Darren, get to Varrock square. Talk to the dwarf by the crafting stall and then the nearby guard and ask them every possible question. The guard will tell you about the dwarf being obsessed with his talisman. Now pickpocket the dwarf. Stand north of the dwarf, and left-click the talisman to put it on the ground a small distance away (you'll automatically walk to do this). Now quickly run to the guard, and when the dwarf walks to the talisman, right-click and distract the guard (you will tell him about Romeo looking suspicious). When both the guard and dwarf are distracted, quickly steal from the stall. Now talk to the dwarf, to get the bank notes and return it to Darren after that. Congratulations!

After completing the caper, Urist sells crafting equipment. It is also possible to steal his craftsman's monocle by telling him that his talisman is at his feet.

Trivia

 * The Twitter hint for this update was 'Ruby Dragon!'.
 * Examining the Talisman reveals: "A gem in a gold setting. All craftsdwarfship is of the highest quality." The second sentence is the exact description of a Legendary Artifact quality in the indie game Dwarf Fortress.
 * The title of the quest 'From Tiny Acorns' is taken from the phrase 'from tiny acorns grow mighty oaks'.