Though scoffed at by Harold the dog, Chester the cat tries to warn his human family that their foundling baby bunny must be a vampire.
When seemingly unrelated and strange events start to happen and a precious Vermeer painting disappears, eleven-year-olds Petra and Calder combine their talents to solve an international art scandal.
When thirteen-year-old Ali spends the summer with her aunt and cousin at the family's vacation home, she stumbles upon a secret that her mother and aunt have been hiding for over thirty years.
Griffin Bing is in big trouble when a Super Bowl ring disappears from his middle school's display case, replaced by Griffin's retainer, and the more he and his friends investigate, the worse his situation becomes.
Nick and his friend Marta decide to investigate when a mysterious fire starts near a Florida wildlife preserve and an unpopular teacher goes missing.
Fourteen-year-old Amy's excitement over her first babysitting job ends when she and her three-year-old charge are kidnapped, but a daily videorecording sent to little Kendra's parents allows Amy to send clues, in hopes of being rescued before the kidnappers decide they no longer need her.
With his father, a fugitive, falsely accused of multiple murders and the real serial killer stalking the wretched streets of Urbs Umida, Pin Carpue, a young undertaker's assistant, investigates and soon discovers that all of the victims may have attended the performance of a stage magician who claims to be able to raise corpses and make the dead speak.
In 1347, when fourteen-year-old orphan William Paynel, an impoverished servant at Crowfield Abbey, goes into the forest to gather wood and finds a magical creature caught in a trap, he discovers he has the ability to see fays and becomes embroiled in a strange mystery involving Old Magic, a bitter feud, and ancient secrets.
When Ted and Kat's cousin Salim disappears from the London Eye ferris wheel, the two siblings must work together--Ted with his brain that is "wired differently" and impatient Kat--to try to solve the mystery of what happened to Salim.
In New York City in 1872, fourteen-year-old Horace, a photographer's apprentice, becomes entangled in a plot to create fraudulent spirit photographs, but when Horace accidentally frees the real ghost of a dead girl bent on revenge, his life takes a frightening turn.
When ten-year-old Darren and his family show up at their family reunion and find their Uncle Will missing, Darren and his sister go in search of clues to discover what happened.
With two attorneys for parents, thirteen-year-old Theodore Boone knows more about the law than most lawyers do. But when a high profile murder trial comes to his small town and Theo gets pulled into it, it's up to this amateur attorney to save the day.