I think Harry might have been the one to secure Hermione's body. He managed to convince McGonagall to remove the restrictions on his time turner. He probably used the time turner right after he was allowed to be by himself in the room with Hermione's body. That would have given himself more time to think and act. He was also checking his wristwatch a lot, especially when he had to leave the room, and when he had interruptions.
In the scene where he convinces Dumbledore and the others that he doesn't have Hermione's body, we don't get very far inside Harry's head. It shows what he says and does, but not his thoughts. Also, he doesn't spend a lot of time speculating about where Hermione's body went, in later chapters.
I'm not sure where he would have put it though. Could he get out of Hogwarts to take her body elsewhere? Or is there a suitable place in the Hogwarts grounds where he could stash it? Would he have to keep visiting the body to renew the spell on her body to keep it cold, or could he figure out a muggle way to cool it, or a different magic way that didn't need to be renewed?
This is a new thread to discuss Eliezer Yudkowsky’s Harry Potter and the Methods of Rationality and anything related to it. This thread is intended for discussing chapter 99, 100, and 101. The previous thread is at nearly 500 comments.
There is now a site dedicated to the story at hpmor.com, which is now the place to go to find the authors notes and all sorts of other goodies. AdeleneDawner has kept an archive of Author’s Notes. (This goes up to the notes for chapter 76, and is now not updating. The authors notes from chapter 77 onwards are on hpmor.com.)
The first 5 discussion threads are on the main page under the harry_potter tag. Threads 6 and on (including this one) are in the discussion section using its separate tag system.
Also: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27
Spoiler Warning: this thread is full of spoilers. With few exceptions, spoilers for MOR and canon are fair game to post, without warning or rot13. More specifically: