The first in a series of youth mysteries pits the main character against a ring of thieves called the Colored Cats. Katie Carter jumps into the sleuthing business to track down the criminals who victimized her neighborhood. With the help of her three siblings, she tracks down the gang and dodges danger. But when Katie gets too close to the cat burglars, she finds herself in hot water. They will do anything to keep from being caught by this amateur detective and her friends Follow the trail and solve the mystery along with Katie in her first crime-solving adventure

A mysterious new neighbor, an old treasure map, thieves that are always two steps ahead. It all adds up to the second Katie Carter mystery story Katie agrees to track down a treasure hidden in her neighborhood years ago and then takes on a second case when an inventor is kidnapped along with his latest invention. Can she handle two cases at once, and is there a strange connection between the two?

In this third installment in the Katie Carter Mystery Series, Katie's aunt and uncle go missing, and her family is called to the scene to help in the search. The local sheriff is convinced that the missing couple are dead, but Katie is determined to find them and prove that they are alive and kidnapped. With the help of a spunky young cousin and the rest of her family, she's on the case

Katie and her brother and sisters head to the nearby town of Salem to research a school history paper and find themselves tangled up in the mystery of an ancient curse. The locals are certain that they are being haunted by the ghost of a long-dead witch. Can Katie solve the mystery and prove that there are no such things as ghosts?

A long-lost friend returns to the Carter house for a visit, but something strange is afoot. Peter and his twin brother Jack seem to be mixed up in a mystery. When one of Katie's own family members gets mistakenly pulled into the danger, it becomes personal, and she takes a trip south to straighten things out. Can she unmix the mix-up? Find out in the next Katie Carter mystery story - Katie and the Great Twin Mix-up

It's Christmastime in the Carter household, and Katie has found the perfect gift for her mother. Unfortunately, someone else has found it too - in her shopping bag When the golden egg goes missing, Katie must find it again before Christmas Eve. Will she be able to track down the thief and learn what's so unique about this particular gift? Find out in the sixth Katie Carter mystery story - Katie and the Golden Egg Mystery

Cathy's looking for a good medical school to attend, but the one she's picked out seems to have a lot of problems. A missing student, drug abuse among the sports teams, and a conspiracy to keep it all hidden. Can Katie solve the mysteries and help clean up the school? Find out in the seventh Katie Carter Mystery Story - Katie and the Case of the Missing Rookie

It's Carl's birthday, and Katie has promised to help him with his school report on the history of vampire mythology. But their research gets interrupted when Carl's history teacher turns up dead. He appears to have been killed by an actual vampire. Can Katie prove that vampires don't exist in her first ever murder mystery? Find out in the eighth Katie Carter Mystery Story - Katie and the Mystery of the Vampire

Katie solved a mystery once for the Greenborough Museum, and now they're calling on her detective skills once again. The biggest find in dinosaur history is going missing, piece by piece, and no one can figure out how It looks like an inside job, but can Katie get enough evidence together before the crook skips town with the bones? Find out in the ninth Katie Carter Mystery Story - Katie and the Case of the Missing Dinosaur Bones

For the first time, see Katie's 21st through 24th mysteries together in one volume, along with a special never-before-published short story First, in the Return of the Vampire, a former nemesis returns to menace Katie and take the blood of more victims. Then, in the Case of the Haunted Ski Lodge, a ski trip leads Katie and her brother Carl to investigate a haunting on a mountainside. Next, in the Case of the Cosplay Caper, someone is trying to sabotage a local convention, and Katie has to find them before the whole event is shut down. Finally, in the Mystery of the Missing Wedding Gifts,...