User blog comment:Kaido King of the Beasts/Chapter 817: Feudal Familial Fails/@comment-13876472-20160226130139

I would also add the fact that Momonosuke can hear a loud voice coming from the whale, which triggers a memory of Inu and Neko that "there was another who said much the same". Seems to be a direct reference to Gol D. Roger who could "hear the voice of all things".

To me this is almost as interesting as the content of the crimson poneglyph.

Generally, this was my favourite Zou chapter, and I really like Zou so far ;)