Jigsaw Jones is at it again. Eddie Becker has come up with a plan that is guaranteed to be a million dollar invention. It would be great, but the plan ends up being stolen. Jigsaw Jones is on the case. Also, students are getting random notes that say “ I saw what you did” . It is up to Jigsaw Jones to find out who is sending the letters and stole the million dollar invention plans. Fans of the series will like this one. It is a fast read and great for children who love a good mystery. It is a great read alike for the Encyclopedia Brown series. I would recommend it for any collection. ( )