Cam Jansen and the Mystery of the Stolen Diamonds

In the story, the thieves use the baby rattle to trick shoppers and police alike, and the rattle itself therefore becomes a symbol for lying and deceit. When the strange young couple rushes out of the store after the robbery, Cam and Eric notice that they are holding a baby and one large rattle. The friends find this suspicious, since they know that a baby needs lots of supplies. Eventually, Cam discovers that the two are actually part of the theft and that they used the rattle as a way to hide the loose diamonds and smuggle them out of the store. Cam cannot fully solve the mystery until she sees the couple open the rattle and shake the diamonds out of it. When Cam notices the doll on the floor of the house, she arrives at a full understanding of the thieves’ plan, realizing that they made themselves look like doting parents in order to appear innocent, when really their “baby” and its rattle were part of the heist.

In the story, Cam uses her photographic memory to recall detailed scenes, and she often intentionally takes mental pictures of what she sees. Cam’s habit of saying, “Click!” references her photographic memory and serves as a reminder of  The Importance of Situational Awareness.