I have to say, this chapter feels erratically written. The big secret comes to light, and our protagonist is deeply affected, again. His sadness doesn't seem to make sense given the events that have transpired. We also see Mira react more strongly to Miyasaka's mood swings, but why so much interest in him? It's understandable that he's grown so fond of her, but she doesn't seem to interact with him any more than she does with the other guests. It's as if the plot has to accelerate the romance because we're running out of chapters. At least piecing together the puzzle of the lodge's past and the mystery of the key has been much more interesting.