okay ...
I subscribe to what enigmaindex said ... !!
"And this part is so funny, they are so stupid it takes them so long to figure out that’s its Sai’s book and numerous other things. Seriously how dumb are these Ninjas? Geez."
))
)
Anyhow .... spoiler coming up
I know how the unfinished page ends up
( not from any manga
)
It`s plain simple
Sai is holding his brother by the hand
But since his brother died ... , he didn`t finish the book , and sai`s missing face shows the fact that he has no emotions .... !