Carole Marsh: 133 books

Christina and Grant start in New Orleans. Their two new friends start at the headwaters of the Mississippi River in Minnesota. They planned to meet at the Gateway Arch in Saint Louis. But they didn't plan on getting involved in a very strange mystery which takes them over locks and dams, past Tom...

One if by land! Too many tombstones! Four funny friends! Spooky old places! Lots of clues and it's a race to the finish! When their schoolteacher cousin disappears in the middle of running the Boston Marathon, four kids wind their way through the perilous maze of Boston streets along the Freedom Trail...

Christina, Grant, Mimi and Papa “head 'em out!” on a real covered wagon trek across the prairie, encountering adventure much as the pioneers of yore, and a mystery that you could say leaves Grant “upChucking!” LOOK what's in this mystery - people, places, history, and more! Gateway...

Mimi reads an ad and thinks, "Hmm, would this make a great vacation home for a mystery-book-writing grandmother and her family and friends. Papa says, ìLets take a look.î Soon, Christina and Grant are whisked off aboard the Mystery Girl airplane with Mimi and Papa to Transylvania, Romania where...

The Underground Railroad is not a real train, you know? Its a fascinating period of history and mystery filled with legend and lore. Come along for the ride of a lifetime through this incredible tale of a time when heroes could be found in the most unlikely of places. From the Deep South all the way...

Christina, Grant, Mimi and Papa bike to Mount Vernon, historic home of George Washington and find mystery, history and more “wooden” teeth than you can shake a stick at! LOOK what's in this mystery - people, places, history, and more! George Washington: early years: family, childhood and...

Four funny friends travel to Disney World for the vacation of a lifetime! They have a lot of fun, until… A pirate kidnaps one! Ghosts grab the second! A mouse house swallows the third one! And the fourth is left to find them all! Solving this magical mystery will take a little good luck and loads...

When Mimi, Papa, Christina and Grant visit a U.S. Park Ranger friend and her two children, the kids almost immediately embark on a GRAND adventure! Join them on an exciting tour--by helicopter, stubborn mule and tipsy-turvy whitewater raft--down the Colorado River through the Grand Canyon! LOOK...

Christina, Grant, Mimi and Papa make their way to Mount Rushmore to check out the colossal carving of four presidents.. and find a mountain's worth of mystery, history, precocious prairie dogs, quirky clues, befuddling Badlands, and one Crazy Horse! One sassy sculptor! A batch of badlands! One store...

A mysterious new neighbor moves to the neighborhood. Best friends Leah Criss, Sara Cross, and Aimee Applesauce have no clue of what to make of this event-even though they've been ordered to make friends with the new neighbor! However, she's sort of old...sort of weird...sort of scary...so what are...

Avery and Evan visit the National Wildlife Refuge—home to HUMONGOUS ALLIGATORS!—”stacked like cordwood!” When the kids overhear rumors of “gator poaching,” they are determined to help find the culprits. “We gotta protect wildlife!” Clues set in motion a wild adventure filled with science,...

One historic flight! Four funny friends! A missing plane! A howling winter storm, clues on every dune and time is flying away! Four real kids attending the Centennial of Flight celebration in Kitty Hawk find themselves racing through aviation history to find a missing plane-but is it really missing? LOOK...

One creepy curator, two missing skulls, three batty bats, four funny friends and too many bones! An ordinary trip to see the dinosaurs at Chicago's Field Museum turns into a riot of mystery and laughs as four real kids gallivant all over town trying to learn about Chicago's past in order to solve...

Mimi inherits a gold mine-the Gold Bug! On summer break, Christina and Grant join their mystery book-writing grandmother and cowboy pilot grandfather, Papa, on an adventure to check out the mine and discover a mystery that could mean boom or bust! LOOK what's in this mystery - people, places,...