Five pet rats were discovered October 20 in the book drop-off at the Coeur d’Alene (Idaho) Public Library. The animals, four males and a female, were left behind by an obscured figure about 12:30 a.m., as recorded by the library video surveillance system. The rats survived a soft landing in the padded bin and went about their business until about 7:30 a.m., when they were discovered by the library’s circulation manager, who in turn called animal control. They’re available for adoption at the Kootenai Humane Society.