Trevor, Nick and Robyn are hot on the trail of the sandwich thief when they learn that more than food has gone missing at school. A valuable hockey book has been stolen from the library, and the librarian might lose her job if it isn’t found. Who would steal a hockey book? Could it be Robyn’s arch-nemesis and hockey enthusiast, Cray? Or could it be the Oilers fan, Ms. Thorson? The kids are determined to solve these mysteries even though their sleuthing efforts land them in trouble at every turn.
