Bracelet

The bracelet shaped like antlers that Peter gives to Brooke and Lacey is a symbol of the way he desires to possess them.

Dagger Necklace

The dagger-shaped necklace that Ellery's mother gives her for her birthday is a symbol of Ellery's love of true crime murders, and her mother's inability to talk directly about Sarah's disappearance.

Clown Museum

Malcolm invites Ellery to go to a clown museum with him as a date. They go together at the end of the book, and it is a symbol of their lives returning to normal after the chaos and tragedy of the events of the novel.

Car Repair Receipt

The car repair receipt that Ellery finds is a symbol of proof that Katrin's car was involved in a car accident on the weekend Mr. Bowman was hit and killed. It is a red herring, because it leads Ellery to...