Mandil can sometimes be found halfway across Cyrodiil at The Count's Arms in Anvil on the 5th and 6th of every month. She is a member of the Thieves Guild. Mandil can be located in the Imperial City Market District during the afternoon hours except on Sundas, when she frequents the Arboretum.
Imperial City "It pays to know about locks and lockpicks. It's just a hobby, of course, but the average citizen feels more secure when he understands his own locks."