X has finished Boys Adrift: The Five Factors Driving the Growing Epidemic of Unmotivated Boys and Underachieving Young Men on his end of the challenge, and is off reading something else. It looked like the D&D handbook; I'd better put the Dungeon Masters guide on my list so I can run some campaigns this summer.
I think I'm at about 8 hours now; I'm keeping a tally on a piece of paper and will report at the end when I also mess about with page numbers. It's too complicated to keep track; I'm making myself read in fifty page chunks before switching to something else, but that means I'm not sure how much time I spend on each book. And there was the break to clean up the cat pee.