In this ornament/book - complete with the string by which to hang it on the tree! - Katie decides to make Christmas cookies for her teacher. When the entire class has the same idea, there are more than enough to go around!
Who is caught red-handed in "The Case of the Circus Footprints?" Who spooked Mr. Bramble in "The Case of the Haunted House?" Readers solve these crimes and more by examining the evidence provided in seven challenging cases and putting together the jigsaw puzzle at the end of each case.