Kumogakure Book?

[josephcswartz]

I have come across in my notes that Takamatsu Sensei wrote a short book on the Kumogakure Ryu. Does anyone know the name of this book and where I can locate a copy. I remember vaguely something about this where he supposedly spoke of the ryu in the book in the past tense. Arigato.

Ninpo-Ikkan!
Joseph C Swartz
Bujinkan Kuzuryu Dojo