A Margin for Murder : A Charming Bookish Cozy Mystery (A Beyond the Page Bookstore Mystery)

"Addie...travels to the neighboring town of Pen Hollow to attend a book sale...But the real find is a bookmobile bus, which she's excited to refit as a traveling bookstore...The bookmobile also holds a surprising treasure: several classic first editions and an early edition of Robert Louis Stevenson's A Child's Garden of Verses. But before the bookmobile can be delivered to Addie, a fatal car crash occurs. When an autopsy reveals poison in the victim's system and the first editions go missing, it's up toAddie to determine what would drive someone to murder"--