Subscribe | UPI Odd Newsletter Subscribe Dec. 4 (UPI) -- Police in Pennsylvania are trying to figure out who left a "significant" amount of cash inside a children's book donated to a library. The Manheim Township Police Department said workers at the Manheim Township Public Library discovered the money hidden inside a copy of children's book Diary of a Wimpy Kid. Advertisement The book was donated Sept. 18, but the money wasn't discovered until later. "Any person who makes a claim to the money will have to provide specific details as there are unique identifiers that only the true owner would know," police said. Read More Live boa constrictor found in bin of Goodwill donations Pre-Revolution newspaper donated to New Jersey Goodwill $18M worth of cocaine found in banana boxes donated to Texas prison