Karate chop the case in this interactive book where YOU decide what happens next! Packed with 29 possible endings! Choose Your Own Adventure books–the 4th bestselling children’s series of all time–are back and as much fun as you remember. Kids and adults agree, these are the books that get 9- to 12-year-olds reading. An ancient samurai sword arrives on the doorstep of your aikido dojo in Kyoto, Japan. Does the ninja sword hold magical powers that date back many decades? If you trace the history of this mystical sword, will your life be in danger? Without warning, five ninjas attack! Are they after the samurai sword or out for your head? Be careful, the choices YOU make might end in glory, disaster, or certain death.