NINJA: The Invisible Assassins $19.95 NINJA Vol. 1: Spirit of the Shadow Warrior $17.95 NINJA Vol. 2: Warrior Ways of Enlightenment $17.95 NINJA Vol. 3: Warrior Path of Togakure $19.95 NINJA Vol. 4: Legacy of the Night Warrior $19.95 NINJA Vol. 5: Lore of the Shinobi Warrior $19.95 Ninja Vol. 6: Secret Scrolls of the Warrior Sage $19.95