All the comments are very good..
I would like to add though that maybe since you didn't get the bad feelings until after you read the book maybe cleanse and consecrate the book as well as any things you might be using to store these items. I've cleansed my own book once and I use it occasionally just to double-check myself nowadays and I have never really had a problem with it, but I also cleanse my card bag when I cleanse my cards. It seems kind of excessive sometimes, but the way I figure it the bag is protecting my cards from negative energy and therefore might need some loving too every once and a while.