There is another way to get the key.
There is another locked room in the tower, if you have maximum skills, you can lockpick the locke door and duplicate the key. That key can be used to open Illia's room
There is another way to get the key.
There is another locked room in the tower, if you have maximum skills, you can lockpick the locke door and duplicate the key. That key can be used to open Illia's room