While visiting Thomas Jefferson's home, Monticello, presidential stepdaughter KC Corcoran and her friend Marshall investigate the theft of a box of toy horses given to Jefferson by his grandchildren.

After Frank and Joe's friend Jason wins a map to the buried treasure of Captain Scurvydog, they investigate when Jason claims the ghost of the pirate has been haunting him and warning him not to dig up the treasure.

Owl detectives Wallace and Grace solve the mystery of the spooky garden.

When Nanea suspects a boy of stealing from her grandparents' market, she tries to keep her family and their business safe.

When Cassie's mom, the chief of police, is suspended, Dodge, a retired police dog, and Cassie are on the case, but the more they uncover, the more questions they have.

"The villagers of Greymist Fair know that the woods are a dangerous and magical place, and that they should never set foot off the road. But when a young tailor discovers a body, her search for the culprit reveals even more strange and dark happenings around her town"--

When lights start flickering and temperatures suddenly drop, twelve-year-old Tessa Woodward, sensing her new house may be haunted, recruits some new friends to help her unravel the mystery of who or what is trying to communicate with her and why.

Mickey Bolitar and his friends continue to investigate the Abeona Shelter, while Mickey searches for answers about his father's tragic death--

The son of a Mississippi policeman finds a boy living in hiding in the wilderness and tries to help him without giving away his secret--

Twins Theo and Alexander, their older sister Wil, and five new friends find themselves at an electrifying manor run by Mister Frank and Dr. Stein.