It's Driving Me Crazy

Now I know that I have a copy of Sock Knitting Master Class.  But where?
Some of my books were stacked near my knitting chair.  I was confident that Master Class was in the stack.  It wasn't.
Drat.
Nor was it on the bookcase of knitting books.  Or in the stack on the wool room floor; the books that wouldn't fit in the bookcase.  Not in any of my knitting bags.
Nowhere.
You know, it has even kept me from doing much knitting tonight, fretting about it.
It is going to drive me crazy.