If you're a fan of rogue-like games, then you'll definitely want to check out this mod. It lets you access the door behind the dwarves in Redcliffe Castle - Main Floor (cli300ar_redcliffe_castle) in order to gain access to the room with the chest containing the Botanist's Map of Thedas.

It was a conscious decision to make this modification because, as I said in the beginning, the idea of this game is to get to the bottom of the story of Redcliffe Castle. And in order to do that, it is necessary to open all the doors that you can in this huge and complex building.