The End or Something Like That

In this book there are again and again moment. This girl (they don't say her name) her best friend dies and the girl she keeps get memories about her. Right now it's gonna be 1 year without her and she remembered when she was talking about a guy named Dr. Ted Farnsworth a guy who could help you talk to the died. Kim she wanted her to talk to her but "the girl" she is afraid because she has never done this. Later she goes back to the real life and her earth science teacher died and it reminds her about Kim mostly everything she thinks about comes back to what happens too Kim.