Real kids, real places

Christina and Grant become caught up in an otherworldly mystery when they travel to Nevada and learn their friends, who have a ranch near Area 51, have been dealing with disappearing cattle.

Christina and Grant are surprised when Mimi opens a bookstore in an old funeral home that is reported to be haunted.

Four young people search for clues to find their missing teacher who disappeared in the middle of the Boston Marathon.

Four young people pursue a mystery on California's historic Mission Trail and manage to learn a little Spanish in the process.

Four young people pursue a runaway dogteam and a renegade musher during Alaska's Iditarod race.

Four children go searching for dinosaurs missing from the Field Museum in Chicago.

Mimi tells Christina and Grant a mystery story about North Carolina's Lost Colony, complete with two boisterous boys, kidnapped coins, a foggy graveyard, a missing friend, and moonlight trip on an old sailing ship.

Christina, Grant, Juan, and Rose find mystery when the Alamo is attacked by termites and ghosts.

Four young people set off on an adventure of the coast of North Carolina and learn about the history of piracy which used to be common up and down the East Coast.

Christina, Grant, Mimi, and Papa head to the Great Smoky Mountains and end up in an A+ Appalachian mystery complete with an eerie mountain haze, spectacular scenery, a boisterous bear, confounding clues, and mystifying folklore.