in the Docks district theirs this shopkeeper
that has two locked doors.The Knock spell will not work on the locked door.I asked what was behind the door.He said Jewels were behind the door.How do i open those doors.{if im confuseing you then its next to the house where three Minotaurs are}

You need a rogue stone ... and a strong party too.

Wrong place Thorr.

Dragon903: That's the Mae Var's guildhouse. You need to activate this quest by taking a visit to the thief guild in the same area and talk to some people there.

That´s rihght Zorac. It is Mer'Var's guildhouse. I you walk to Renal bloodscalp of the shadowthiefs, he´ll give you papers that allow you to enter and activate the quest.