Dragon Ball Volume 2 by Akira Toriyama

With the (reluctant) help of the shapeshifting pig Oolong, Goku and Bulma have found almost all the Dragon Balls they need to get their wish! To get the sixth Dragon Ball, the fearsome Ox King sends Goku on a mission: to find Kame-Sen'nin, the Turtle Hermit, whose mighty powers can put out the raging fires of Fry-Pan Mountain! But the sleazy old martial artist might just make it more trouble than it's worth! Then, with the bandits Yamcha and Pu'ar on their trail, our heroes continue their quest for the seventh and final Dragon Ball. But can they get it from little Emperor Pilaf, who wants to use his wish to rule the world?!!