[[Category: chapters]] "The Mystery of the Planet Series!!" is the fifty-sixth chapter of the Yu-Gi-Oh! GX manga. It was first printed in Japanese in the V Jump magazine and in English in the Shonen Jump magazine. Both of which were printed in volume 8 of the Yu-Gi-Oh! GX graphic novels afterwards. Jaden finishes his Duel with Adrian, while Tragoedia issues his penalty. The next singles match begins, with Syrus facing Jesse.