The discovered “Mabayashi Seiyo”. It is believed to be a transcript of the original. It has 48 pages in total, and the page in the photo shows how to make a shikotsu-teki (a walking stick).
Discovery of “The Book of Phantom Ninjutsu,” which has never been published outside the gates…Learning from the Ninja the Wisdom of Surviving in the Midst of Adversity