Blue bells will be singing horses! This strange message, attached to the leg of a wounded homing pigeon, involves Nancy Drew in a dangerous mission. Somewhere an elderly woman is being held prisoner in a mansion, and  Nancy is determined to find and free her. Meanwhile, the young detective’s close friend, Helen, begs her to solve a second mystery. Helen’s grandparents, the Cornings, are frightened by a sinister wheel of blue fire...

Hoping to become the greatest detective that ever grew, Inspector Flytrap, a Venus Flytrap, and his assistant, Nina the Goat, investigate "big deal" mysteries at an art museum, a cookie shop, and a garden.

Haunted after helping her father on his ghost-themed Chicago bus tour, twelve-year-old Claire must discover what the spectral boy from the bus wants before it is too late.

When Nancy Drew and her two close friends arrive for the Emerson University June Week celebration and learn there has been a mix-up in their motel reservations, the confusion leads to a baffling mystery.
Uncle John Rorick, a descendant of the early settlers of the town of Emerson, invites the three girls to be his guests at his historic mansion on Pine Hill. Shortly after their arrival, he tells them about the phantom who haunts the mansion’s...

When a cyberbully posts embarrassing rumors about other students at school, Drew, to protect her own secret, puts her sleuthing skills to good use to find the culprit, who just might be one of her closest friends.

When their game of neighborhood spying takes a dark turn one night, pre-teen sleuths Sophie Young and Grace Yang find themselves caught in a dangerous cat-and-mouse game with their bizarre guidance counselor, who may be hiding something sinister.

"Two sisters start a detective agency and solve a series of everyday mysteries about themselves and their family"--

"Cassie Hobbes and the other members of the Naturals program of the FBI work to solve a string of serial murders carried out by a copycat killer"--

"Now that troubled Thayer Vega is back in town, Emma Paxton must struggle to figure out the relationship her twin has with him...and whether he may have been the one to kill her"--

"Someone is trying to hunt FunJungle's Asian greater one-horned rhinoceros, and twelve-year-old Teddy Fitzroy is on the case"--