| Adventure To the Eight Wonders of the World! | | M | |  |
| Adventure to the Pioneer Prairie! | | M | Aug-2007 |  |
| Adventure To the Planet Mars! | | M | Jul-2007 |  |
| The Awesome Aquarium Mystery | | M | |  |
| The Awesome Aquarium Mystery! | | GF | Mar-2006 |  |
| The Awesome Atlanta Mystery | | M | Feb-2012 |  |
| The Baseball Mystery | | M | Dec-2011 |  |
| The Behemoth Blizzard Mystery | | M | |  |
| The Big Virginia Activity Book! | | GF | May-2001 |  |
| The Breathtaking Mystery on Mount Everest | | GF | Oct-2009 |  |
| The Case of the Crybaby Cowboy | | M | |  |
| The Case of the Hunchback Hairdresser | | M | |  |
| The Colonial Caper Mystery at Williamsburg | | M | Apr-2009 |  |
| The Counterfeit Constitution Mystery | | M | |  |
| The Cowboys' Christmas Ball | | GF | Jan-2004 |  |
| The Creepy Acropolis | | S | Mar-2008 |  |
| The Curse of the Ancient Acropolis | | M | |  |
| Dear Alien: The Little Green Man Mystery | | M | |  |
| Dear Bats: The Creepy Cave Caper | | M | |  |
| Dear Bats: the Creepy Cave Caper Mystery | | GF | Jan-2008 |  |
| Dear Pirate: The Buried Treasure Mystery | | M | |  |
| The Earthshaking Earthquake Mystery | | M | |  |
| The Epiphany Surprise Christmas Cake Story Kit | | GF | Nov-2002 |  |
| The Ferocious Forest Fire Mystery | | M | |  |
| The Ghost of Pickpocket Plantation | | M | |  |
| The Ghost of the Golden Gate Bridge Mystery | | M | Sep-2008 |  |
| The Ghost of the Grand Canyon | | M | Apr-2004 |  |
| The Giggling Girl Scout Mystery | | GF | May-2012 |  |
| The Gosh Awful Gold Rush Mystery | | M | Jun-2007 |  |
| The Great Train Mystery | | M | Dec-2011 |  |
| Heroes & Helpers Careers Book | | GF | Dec-2003 |  |
| The Horrendous Hurricane Mystery | | M | |  |
| The Legend of The Candy Cane | | GF | Sep-2003 |  |
| The Madcap Mystery of the Missing Liberty Bell | | M | Sep-2009 |  |
| Mary America: First Girl President of the United States | | GF | Sep-2010 |  |
| The Mission Possible Mystery at Space Center Houston | | M | |  |
| My First Pocket Guide New York | | GF | Feb-2004 |  |
| My First Pocket Guide to Illinois! | | GF | Oct-2000 |  |
| Mystery at Area 51 | | M | Jan-2011 |  |
| Mystery at Hollywood | | M | Jan-2011 |  |
| Mystery at Motown | | M | Jan-2011 |  |
| Mystery in the Twin Cities | | M | Jan-2011 |  |
| Mystery of Fort Thunderbolt | | GF | Jun-2007 |  |
| The Mystery at Big Ben | | M | Dec-2005 |  |
| The Mystery at Cape Cod | | M | |  |
| The Mystery at Death Valley | | M | |  |
| The Mystery at Devils Tower | | M | |  |
| The Mystery at Disney World | | M | Aug-2003 |  |
| The Mystery at Dracula's Castle | | M | |  |
| The Mystery at Fort Sumter | | M | |  |
| The Mystery at Fort Thunderbolt | | M | |  |
| The Mystery at Jamestown | | M | |  |
| The Mystery at Kill Devil Hills | | M | |  |
| The Mystery at Mount Fuji | | M | Sep-2007 |  |
| The Mystery at Mount Rushmore | | M | |  |
| The Mystery at Mount Vernon | | M | |  |
| The Mystery at the Ancient Pyramids | | M | Mar-2006 |  |
| The Mystery at the Eiffel Tower | | M | |  |
| The Mystery at the Kentucky Derby | | M | Apr-2001 |  |
| The Mystery at the Roman Colosseum | | M | Mar-2006 |  |
| The Mystery at Yellowstone National Park | | M | |  |
| The Mystery in Chocolate Town...Hershey, Pennsylvania | | M | Jun-2007 |  |
| The Mystery in Hawaii - The 50th State | | M | Feb-2010 |  |
| The Mystery in Icy Antarctica | | M | Aug-2008 |  |
| The Mystery in Las Vegas | | M | |  |
| The Mystery in New York City | | M | Aug-2003 |  |
| The Mystery in the Amazon Rainforest | | M | Sep-2007 |  |
| The Mystery in the Rocky Mountains | | M | |  |
| The Mystery in The Smoky Mountains | | M | |  |
| The Mystery of Biltmore House | | M | Sep-1998 |  |
| The Mystery of Blackbeard The Pirate | | M | |  |
| The Mystery of Mimi's Haunted Book Shop | | M | Oct-2011 |  |
| The Mystery of the Alamo Ghost | | M | |  |
| The Mystery of the Crystal Castle | | M | Aug-2008 |  |
| The Mystery of the Graveyard of the Atlantic | | M | |  |
| The Mystery of the Haunted Ghost Town | | M | |  |
| The Mystery of the Lost Colony | | M | Sep-2010 |  |
| The Mystery of the Missing Dinosaurs | | M | Sep-2003 |  |
| The Mystery on Alaska's Iditarod Trail | | M | Sep-2003 |  |
| The Mystery on the California Mission Trail | | M | Aug-2003 |  |
| The Mystery on the Freedom Trail | | M | |  |
| The Mystery on the Great Barrier Reef | | M | |  |
| The Mystery on the Great Lakes | | M | |  |
| The Mystery on the Great Wall of China | | M | Nov-2006 |  |
| The Mystery on the Mighty Mississippi | | M | Apr-2001 |  |
| The Mystery on the Oregon Trail | | M | |  |
| The Mystery on the Underground Railroad | | M | |  |
| The Penguin Strut Fashion Show | | GF | Aug-2003 |  |
| The Puzzle of the Indian Arrowhead | | M | |  |
| The Puzzle of the Shark Surfer Girl | | M | |  |
| The Riddle of the Missing Puppies | | M | |  |
| The Riddle of the Ooglie Booglie | | M | Jun-2006 |  |
| Rip-Roaring Mystery on the African Safari | | GF | Apr-2009 |  |
| The Secret Christmas Potpourri and Tussie Mussie Story Kit | | GF | Nov-2002 |  |
| The Secret of Eyesocket Island | | M | |  |
| The Secret of Skullcracker Swamp | | M | |  |
| The Snow Bank | | GF | Aug-2003 |  |
| Snowshoe and Earmuff Go North | | GF | Jan-1994 |  |
| The Story of Santa Claus | | GF | Sep-2003 |  |
| The Treacherous Tornado Mystery | | M | |  |
| The Victorian Crazy Christmas Cobweb Party Kit | | GF | Nov-2002 |  |
| The Voracious Volcano Mystery | | M | |  |
| When Kids Take Over NASA | | M | Feb-2012 |  |
| The White House Christmas Mystery | | M | Oct-2003 |  |
| The Wild Water Mystery at Niagara Falls | | M | Feb-2008 |  |
| The Zany Zoo Mystery | | M | |  |