More than 1,000 years ago, the people of Iga, the mountainous region of Japan, were forced to rise up against their merciless Samurai oppressors. Out of this struggle, nine traditions of the ninja arts grew. The ninjas" strength enabled the mind to believe it was the master of its fate. This power is known as ninjitsu. In his groundbreaking books "Knights of Darkness and Mind Manipulation", Dr. Haha Lung has shown the ultimate power of controlling the mind of your enemy. In The Nine Halls of Death he reveals the mystical power of overcoming your opponent"s body through the Japanese art of ninjitsu. Dr. Lung reveals the secret to mastering all nine "halls" (training areas) of the ninja; from unarmed combat and combat with various weapons to the mental crafts of stealth and spying.