Calendar Mysteries #7: July Jitters

It's a mystery every month from popular A to Z Mysteries author Ron Roy! With the younger siblings of the A to Z Mysteries kids! July is for Jitters... In the seventh book of the Calendar Mysteries - an early chapter book mystery series - the mayor is having a special Fourth of July contest; the person whose pet has the best Independence Day costume gets to be mayor for a day! Bradly, Brian, Nate, and Lucy transform Polly the pony into Thomas Jefferson and Pal the dog into the Declaration of Ind