Seven-year-olds Bradley, Brian, Nate, and Lucy make observations and gather clues that convince them that their older siblings, cousin, and animals have been captured by hungry space aliens.

Bradley, Brian, Nate, and Lucy follow clues to find whoever left a rabbit in their first-grade classroom on Valentine's Day, because they are worried the rabbit will get sick and die of loneliness.

Bradley and Brian need help from Nate and Lucy after a hypnotist turns their mother into a duck but does not quite get her changed back.

Bradley, Brian, Nate, and Lucy try to help out the Flying Fortunatos, an acrobatic troupe with a very shabby traveling circus, by identifying the marvelous, hooded trapeze artist they spied rehearsing.

Bradley, Brian, Nate, and Lucy enter Polly the pony and Pal the dog in a July 4th pet costume contest, but when Independence Day arrives the animals are nowhere to be found.

"As Thanksgiving approaches, Nate and Lucy must help Bradley and Brian find out what their shady new neighbors are up to"--

While investigating a mystery on New Year's Eve, four friends encounter a big surprise.

It's a mystery every month from popular A to Z Mysteries author Ron Roy!
July is for Jitters: In the seventh audiobook of the Calendar Mysteries - an early chapter book mystery series featuring the younger siblings of the A to Z Mysteries detectives - 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...