Enter the Court of the Blades via the sewer grate at ( 8, 149, 92 ) Copy/waypoint 8, 149, 92. Note that this instance can be completed with a duo.
Complete the following within 5.0 minutes: (Do NOT try to box this instance you do not have time to run with more than one toon at a time, also if one peroson in group is not on this step, no one will be able to enter though backdoor)
Inspect a scroll; 1st floor on top of the safe ( 23, 0, 6 ) Copy/waypoint 23, 0, 6
Leave the zone the way you came in - remember the exit is found by using the climbable walls positioned on either side of the southern wall on the 2nd floor.
Approach a skeleton in the Sinking Sands at ( -997, -96, -1200 ) Copy/waypoint -997, -96, -1200. Kill the Raj'Dur raiders that spawn for an uncommon update. You may have to wait ~10 minutes for their respawn if the first group doesn't drop Historian Ganish's banner key.
Kill any Alliz Raef Ew lizardman near ( -488, -130, -872 ) Copy/waypoint -488, -130, -872 until you get Historian Kaldara's key update.
Inspect the banner; 1st floor, the room with the glass frame
Exit the way you came in (top floor - use the eastern stairs to get from the 1st floor to the 2nd floor and then use the eastern climby wall to get to the third - door is right there...says "To the servant's exit" when you mouse over it - quest completes upon clicking it)