Can you find all the spooky ghosts hidden in the library? Stop by the reference desk between 1:00 and 4:00 p.m. to participate in a scavenger hunt, and win a special Halloween prize while supplies last. For ages 4 and up.How to AttendThis event takes place in person. Masks are strongly encouraged in all CPL locations.Please register at least 12 hours in advance, and be sure to register all child participants. Adults need not register. The Chicago Public Library cannot collect personal information online from kids 0 to 13. A parent or guardian’s email address must be used to register.Questions about visiting the library? Check out our Using the Library FAQ.Photo Source: Mary Lee, CPL #Halloweek