SPOILER TO THOSE THAT HAVEN'T READ THIS YET!
ok, so basically, the question that sasuke wants answered is who is the third uchiha. because when itachi killed the clan, he mentioned a third surviving member and sasuke wants to know who because he wants to kill him too. the third surviving member is indeed Madara Uchiha. it, also says that itachi didn't kill the clan on his own, but had the help of madara. there is also a final secret to the sharingan, beyond the mangekyo. that's basically all the important facts that was explained in this chapter.
Discuss
ok, so basically, the question that sasuke wants answered is who is the third uchiha. because when itachi killed the clan, he mentioned a third surviving member and sasuke wants to know who because he wants to kill him too. the third surviving member is indeed Madara Uchiha. it, also says that itachi didn't kill the clan on his own, but had the help of madara. there is also a final secret to the sharingan, beyond the mangekyo. that's basically all the important facts that was explained in this chapter.
Discuss