HELP!! **potential spoilers** if you havent read definately dead =)

There are some short stories written by Charlaine Harris that feature Sookie. The one that explains the whole Hadley thing is "One Word Answer" also known as "Bite" it is set between Dead to the World and Dead as a Doornail. Hope this helps

I myself have read ALL 9 books several different times, the hadley thing did shock me and was kinda out of nowhere... I figured the she was goin to do something with hadley when I started to notice they always referre to her, and how sookie does talk about like she is dead she is just not sure where she is