Just got to Biscotti and I'm trying to figure out: is this a one-way linear world with no backtracking after major plot beats, or is the world going to open up at some point so I can take care of secrets I couldn't figure out before? I left a few things I thought noteworthy behind in Sablee because I couldn't figure them out, andhere I am again being told that I'd better resolve all my business before I move on even though I have no idea what to do with all these pressure plate switches and have been assuming I'll find out later how to interact with them.