Swindler's Den is a location in the game The Elder Scrolls V: Skyrim
It is a cave to the west of Whiterun.
You get to this cave in the quest In My Time of Need after learning from the Alik'r Prisoner that Kematu is hiding in this location[1].
You come here to kill Kematu, but Kematu instead wants you to help him capture Saadia.
