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Order of A to Z Mysteries Books
| The Absent Author | (1997) | Hardcover Paperback Kindle |
| The Bald Bandit | (1997) | Hardcover Paperback Kindle |
| The Canary Caper | (1998) | Hardcover Paperback Kindle |
| The Deadly Dungeon | (1998) | Hardcover Paperback Kindle |
| The Empty Envelope | (1998) | Hardcover Paperback Kindle |
| The Falcon’s Feathers | (1998) | Hardcover Paperback Kindle |
| The Goose’s Gold | (1998) | Hardcover Paperback Kindle |
| The Haunted Hotel | (1999) | Hardcover Paperback Kindle |
| The Invisible Island | (1999) | Hardcover Paperback Kindle |
| The Jaguar’s Jewel | (2000) | Hardcover Paperback Kindle |
| The Kidnapped King | (2000) | Hardcover Paperback Kindle |
| The Lucky Lottery | (2000) | Hardcover Paperback Kindle |
| The Missing Mummy | (2001) | Hardcover Paperback Kindle |
| The Ninth Nugget | (2001) | Hardcover Paperback Kindle |
| The Orange Outlaw | (2001) | Hardcover Paperback Kindle |
| The Panda Puzzle | (2001) | Hardcover Paperback Kindle |
| The Quicksand Question | (2002) | Hardcover Paperback Kindle |
| The Runaway Racehorse | (2002) | Hardcover Paperback Kindle |
| The School Skeleton | (2003) | Hardcover Paperback Kindle |
| The Talking T. Rex | (2003) | Hardcover Paperback Kindle |
| The Unwilling Umpire | (2004) | Hardcover Paperback Kindle |
| The Vampire’s Vacation | (2004) | Hardcover Paperback Kindle |
| The White Wolf | (2004) | Hardcover Paperback Kindle |
| The X’ed-out X-ray | (2005) | Hardcover Paperback Kindle |
| The Yellow Yacht | (2005) | Hardcover Paperback Kindle |
| The Zombie Zone | (2005) | Hardcover Paperback Kindle |
Order of A to Z Mysteries Super Edition Books
| Detective Camp | (2006) | Hardcover Paperback Kindle |
| Mayflower Treasure Hunt | (2007) | Hardcover Paperback Kindle |
| White House White-out | (2008) | Hardcover Paperback Kindle |
| Sleepy Hollow Sleepover | (2010) | Hardcover Paperback Kindle |
| The New Year Dragon Dilemma | (2011) | Hardcover Paperback Kindle |
| The Castle Crime | (2014) | Hardcover Paperback Kindle |
| Operation Orca | (2015) | Hardcover Paperback Kindle |
| Secret Admirer | (2015) | Hardcover Paperback Kindle |
| April Fools’ Fiasco | (2017) | Hardcover Paperback Kindle |
| Colossal Fossil | (2018) | Hardcover Paperback Kindle |
| Grand Canyon Grab | (2019) | Hardcover Paperback Kindle |
| Space Shuttle Scam | (2020) | Hardcover Paperback Kindle |
| Crime in the Crypt | (2021) | Hardcover Paperback Kindle |
| Leopard on the Loose | (2022) | Hardcover Paperback Kindle |
Order of Calendar Mysteries Books
| January Joker | (2009) | Hardcover Paperback Kindle |
| February Friend | (2009) | Hardcover Paperback Kindle |
| March Mischief | (2010) | Hardcover Paperback Kindle |
| April Adventure | (2010) | Hardcover Paperback Kindle |
| May Magic | (2011) | Hardcover Paperback Kindle |
| June Jam | (2011) | Hardcover Paperback Kindle |
| July Jitters | (2012) | Hardcover Paperback Kindle |
| August Acrobat | (2012) | Hardcover Paperback Kindle |
| September Sneakers | (2013) | Hardcover Paperback Kindle |
| October Ogre | (2013) | Hardcover Paperback Kindle |
| November Night | (2014) | Hardcover Paperback Kindle |
| December Dog | (2014) | Hardcover Paperback Kindle |
| New Year’s Eve Thieves | (2014) | Hardcover Paperback Kindle |
Order of Capital Mysteries Books
| Who Cloned the President? | (2001) | Hardcover Paperback Kindle |
| Kidnapped at the Capital | (2002) | Hardcover Paperback Kindle |
| The Skeleton in the Smithsonian | (2003) | Hardcover Paperback Kindle |
| A Spy in the White House | (2004) | Hardcover Paperback Kindle |
| Who Broke Lincoln’s Thumb? | (2005) | Hardcover Paperback Kindle |
| Fireworks at the FBI | (2006) | Hardcover Paperback Kindle |
| Trouble at the Treasury | (2006) | Hardcover Paperback Kindle |
| Mystery at the Washington Monument | (2007) | Hardcover Paperback Kindle |
| A Thief at the National Zoo | (2007) | Hardcover Paperback Kindle |
| The Election-Day Disaster | (2008) | Hardcover Paperback Kindle |
| The Secret at Jefferson’s Mansion | (2009) | Hardcover Paperback Kindle |
| The Ghost at Camp David | (2010) | Hardcover Paperback Kindle |
| Trapped on the D.C. Train! | (2011) | Hardcover Paperback Kindle |
| Turkey Trouble on the National Mall | (2012) | Hardcover Paperback Kindle |
Order of Standalone Novels
Order of Chapter Books
| Nightmare Island | (1981) | Hardcover Paperback Kindle |
| Frankie is Staying Back | (1981) | Hardcover Paperback Kindle |
| Where’s Buddy? | (1982) | Hardcover Paperback Kindle |
| Million Dollar Jeans | (1983) | Hardcover Paperback Kindle |
| Someone is Following Pip Ramsey | (1996) | Hardcover Paperback Kindle |
Order of Children’s Books
| Old Tiger, New Tiger | (1978) | Hardcover Paperback Kindle |
| A Thousand Pails of Water | (1978) | Hardcover Paperback Kindle |
| Awful Thursday | (1979) | Hardcover Paperback Kindle |
| Three Ducks Went Wandering | (1979) | Hardcover Paperback Kindle |
| Breakfast With My Father | (1980) | Hardcover Paperback Kindle |
| The Great Frog Swap | (1981) | Hardcover Paperback Kindle |
| Avalanche! | (1981) | Hardcover Paperback Kindle |
| What Has Ten Legs and Eats Cornflakes? | (1982) | Hardcover Paperback Kindle |
| Move Over, Wheelchairs Coming Through! | (1985) | Hardcover Paperback Kindle |
| Big and Small, Short and Tall | (1986) | Hardcover Paperback Kindle |
| Whose Hat Is That? | (1987) | Hardcover Paperback Kindle |
| Whose Shoes Are These? | (1988) | Hardcover Paperback Kindle |
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