Re: Thoughts about 618.
Maybe, it seems they were most knowledgeable about this forbidden Jutsu.
-The Uzumaki invented/discovered the Shiki Fujin?
I'm guessing the ritual needed to be done in that shrine for it to work.
-Oro is up to no good, I didn't like that smirk ( well, I did ). Plus he isn't the type to take orders from Sasuke. Oh and I remember his ''I don't have enough power YET''
The scroll was instructions on how to release sealed souls from Death God.
-So the scroll was really edo tensei ?
Sasuske wanted to know the truth about the past.
-How did Sasuke know that Oro could enable him to meet the ones ? Or it was that jutsu that was in the scroll?
1. It wasn't easy, all the strong Ninjas are out fighting in the front lines with Naruto.
-More importantly, if it was so easy to acquire the mask and undo the jutsu, why didn't Oro try to do it so?
2. There were several Mask, I'm sure if choose the wrong one it won't work.
3. Having access to that shrine and sacrificing someone to let souls out is pretty hard don't you think?