This quest is acquired from Shopkeeper Doran in Cierzo. Doran wants you to deliver a ledger to another shopkeeper in the city of Berg. Berg is located in the region of the Enmerkar Forest. When you reach the city, the shopkeeper in question is named Pleel. You will find her in the north eastern region of the city map, as shown below.
Note: This is a repeatable quest and can be acquired from the same NPC after waiting a few days.
Speak with Pleel and choose the dialogue option ‘I’d like to talk’. She will immediately accept the ledger and reward you with one Medium Ruby, completing the quest.
Tip: Medium Ruby’s can be found throughout the world and are worth 60 silver by default. You will need a Medium Ruby to open Troglodyte gates in the Royal Manticore’s Lair and the Under Island, however at this point in the game you would do well to sell the ruby to facilitate the purchase of improved equipment.