For future reference, this post has good information about the layout of Boys' 22. Of note is the fact that the cabin randomly dumps... "stuff" inside itself at any given time. After Janaff left camp, his feathers have been regularly appearing on some of the beds inside the cabin. Claire's been making pillows out of the feathers, and has quite a large store of them. She sometimes gives them away as gifts.
Whoever decides to live in the cabin - and it's a lovely cabin, after all - will need to be aware of its... personality~