User blog comment:SayuriDarling/The House of Hades Official Discussion/@comment-3247762-20131008224055/@comment-4503464-20131009121029

2 hours and 2 minutes. I read pretty fast.

I remember it only took me an hour to read the last HP, but that was only because I was forced to speed read it. :/ I went back later and took my time, and it took about 3 hours.