How to Lift a Lion book

I had a nose bleed on the way home from work yesterday and at bedtime I started to have a little problem with it again.   I'd been reading a book that Tatiana really likes, "How to Lift a Lion".    It is a kid's physics book on simple machines.  I was halfway through when I had to sit up.  She said, "That is OK mommy.   I will read the rest to you.   And she did.