Inside Marugame Castle Part 3/5

Marugame castle has the strangest vibe. Strange & dark (not just because of dark interiors.). The ghost app on the phone indicated a presence near the front left panel of the well. But it disappeared the moment it was detected. Inside the 1st floor of the Tenshu (castle keep), under one of the corners, my companion suddenly had a disturbing vision of blood dripping down the beam from above. The vision only happened under that beam, not under the other beams. The stains are strange (especially the marks on the thick beam). Maybe mold or rain or leftover renovation marks?