Talk:Hercule Satan VS Dan Hibiki/@comment-25969827-20150923213301/@comment-1652808-20150923224438

I'd have to go find the exact post, but I believe that it's canon.

EDIT: https://snoworld.one/rick-riordans-mythology-timeline-of-events/

It is canon, but they're a bunch of short stories from Rick himself between the events of the 3rd and 4th books.