Leveled Reader 6pk Silver Circus Mystery: Rigby Sails Advanced Fluency Leveled Reader 6pk Silver Circus Mystery Sails Orvil's parents are trapeze artists in the circus. When the circus ringmaster's safe is robbed, Orvil works to solve the crime. Orvil hears Maxus's parrot chanting numbers—the safe combination! The ringmaster's parrot was the thief. Grades: 4-5 Material Type: Student Materials, Resource Materials Format: Kit ISBN-13/EAN: 9780544082069 ISBN-10: 0544082060 Product Code: 1537374 National/State: National Copyright Year: 2013