My kids love mysteries! Here is something else we did with mysteries. My cute little fourth graders picked a good mystery read and then:
1. Decorate a title page
2. Write a summary with suspense all the way up until "who did it"
3. Then write 3 possible endings with 1 being the true solution
4. Do a self-rating
5. Present to the class and see how many people you can stump! Whoever stumps the most, gets a prize!
If interested in purchasing this book report along with many others, go to : http://www.teacherspayteachers.com/Product/Book-Reports-that-Motivate-Pick-a-Genre