TRUSTFELL NOTES
Isaac's room is ridiculously neat - you'll notice that there's nothing out of place and nothing looks cluttered. You can find most of his belongings in his trunk, though all the items he wanted to keep are in the closet. There are some notes laid out on his desk as well, addressed to the other people here (and one other person).
Those might not be the first things you see though, since there are the designs painted on two of the walls. You'll find yourself staring at a map of Amestris with certain cities labeled. Ishval is circled in red. Some of them have paper duct-taped nearby with Isaac's handwriting, written in code of course.
The second wall has a map of Central City with a familiar alchemical array painted through it in red. Three specific points are marked on this map and once again there's duct tape and paper containing notes on whatever it is this one's supposed to represent.
Inside the desk you can find an alarming amount of notes - they're written in Amestrian and coded in a cipher that involves numbers, letters, and mathematical equations. If you're able to figure out the cipher you're certainly welcome to read them! Otherwise these are coded to look like research notes on his alchemy.
Those might not be the first things you see though, since there are the designs painted on two of the walls. You'll find yourself staring at a map of Amestris with certain cities labeled. Ishval is circled in red. Some of them have paper duct-taped nearby with Isaac's handwriting, written in code of course.
The second wall has a map of Central City with a familiar alchemical array painted through it in red. Three specific points are marked on this map and once again there's duct tape and paper containing notes on whatever it is this one's supposed to represent.
Inside the desk you can find an alarming amount of notes - they're written in Amestrian and coded in a cipher that involves numbers, letters, and mathematical equations. If you're able to figure out the cipher you're certainly welcome to read them! Otherwise these are coded to look like research notes on his alchemy.

no subject
She's kind of cold and her title's "Detached" so it's not surprising that she was the first person to assume the worst about Maizono's intentions. I was kind of irritated about that at first, but that's the only thing that makes sense, so it's not really Mahiru's fault. It's a good thing she brought it up. I never would have assumed Maizono would want to kill someone.
WEEK 2
She's been keeping track of the items in the infirmary and storage room too, I think. She wanted to come up with a way to monitor who was using the items in the infirmary. It's kind of suspicious, even if I don't want to believe she'd kill anyone.
WEEK 3
Mahiru got really enthusiastic during the trial. It was pretty creepy, honestly. I don't know what to make of it.
WEEK 5
She's going to teach me how to use a sword. It isn't really necessary and it's not like I'll use one when I get home... but there's not much to do here and this is a good way to distract myself.
WEEK 6
She taught me how to use a sword. It's still a bit tricky, but I think I can manage it with enough practice.
WEEK 7
I don't want Mahiru to die either. I'm sorry.