Learn the secrets of the mystical symbols of the Koga Ninja - Famed Ninja author, Grandmaster Toshitora Yamashirp, discloses actual training methods for trapping the mystical forces within. Learn to control animals, endure pain, heat, cold, turn invisible, & more. 5 1/2 x 8 1/2, 71 pgs, illus., softcvr.