Board Thread:Naruto News/@comment-26937472-20151130084303/@comment-26424744-20151203141826

AskinNakkLeVaar wrote: the novel wasnt written by Kishi so it is non-canon. the movie version is canon, and its explicitly said they are the reason Kaguya created the army out of fear of them, and are the greater threat sasuke alluded to in the gaiden.

Lol, the movies script was co-written by Kodachi & Kishomoto, the novel was written by Kodachi. Hence it's canon, because it was written by a primary source.