Naruto The 2: The Legend of the Stone by Gelel Lim

Naruto, Shikamaru and Sakura can hardly imagine a simpler mission: They must return an escaped ferret to its owner. But suddenly, without warning, they are attacked by a young knight named Temujin and find themselves in a fierce battle over the legendary and precious Stone of Gelel. Temujin's master Haido wants to use this stone to create a world without wars - a utopia - while the others of his clan want the stone sealed forever under all circumstances. Naruto and his friends must prevent the stone from falling into the wrong hands and even get help from Gaara and Kankuro. Because one thing is for sure: The dream of utopia will soon turn into a nightmare, and then it will take more than just a ninja to make things right...