"Then take me to learn the whole truth!"
Sasuke thought for a moment before finally nodding.
He truly wanted to know the whole truth. Only then could he clear away the confusion in his heart and decide what he wanted to do in the future.
As for why Hawking wanted to help him?
He assumed Hawking wanted to persuade him to return to Konoha, just like Naruto had.
"Tell me where your Older Brother's body was buried. We need to take something from him."
Seeing Sasuke agree, Hawking wasted no time. After having Sasuke leave behind a Shadow Clone to prevent anyone from noticing, he took him and vanished from the spot with Apparition.
The principle behind Impure World Reincarnation was to use things such as the deceased's flesh, blood, and bones as a medium, summon the dead person's soul back from the world of the dead, and then use a living body as a vessel to temporarily revive them.
The revived body retained all the abilities it had possessed in life, including the Sharingan and Rinnegan.
It also possessed unlimited Chakra. Even if its body was destroyed, it could slowly regenerate and could no longer be killed.
Its weakness was that it was restrained by Sealing Techniques, and if the reincarnated target was too powerful, it could not display all the strength it had possessed in life.
The souls of the Four Hokage had all been sealed inside the Reaper's stomach by the Dead Demon Consuming Seal.
So as long as they were released, they could be directly reincarnated through Impure World Reincarnation without any medium, provided living vessels were prepared.
But Itachi was different. His soul was currently in the world of the dead. To use Impure World Reincarnation on him, they had to find his body and