While on a camping trip with their grandfather, the Alden children try to find out about the loud music and missing food that threatens to scare away other campers

Seventeen-year-old April finds her comfortable life changed forever when death threats to her father, a witness in a federal case, force her family to go into hiding under assumed names and flee the pursuit of a hired killer

When the newspaper company cancels his route, Wil David is prepared to fight to get his job back, but his focus changes when he stumbles upon a carnival mystery and a plot by a con man that could destroy the town

Named after a character in a Shakespeare play, misfit sixth-grader Hero becomes interested in exploring this unusual connection because of a valuable diamond supposedly hidden in her new house, an intriguing neighbor, and the unexpected attention of the most popular boy in school

On Green Day, Cam and her classmates discuss ways to protect the environment, but when money collected for the school's new skylights disappears, Cam uses her photographic memory to solve the mystery

A mouse who lives in Sherlock Holmes' cellar evolves a daring plan to uncover the identity of a kidnapper.

Duped into thinking the world is coming to an end, Hank the Cowdog winds up in town for some more adventures including getting in and out of a case of "soap hydrophobia."

Arno Eliot is always causing trouble-and when he disappears at the zoo, Dawn Bosco will have to solve a mystery to set things right   It's almost the end of the summer, and Dawn Bosco is hoping for one last mystery before school starts. Then Noni, Dawn's grandmother, has to babysit Arno Eliot, the worst six-year-old Dawn has ever met, for the whole week!   Dawn doesn't want to spend her last week of summer vacation watching Arno. When Arno says...

Seventeen-year-old Laurie Stratton should be happy. She has beauty, health, a handsome boyfriend, and loving parents. But Laurie has begun to feel the presence of a double, a shadowy figure that hovers just out of her reach. It has appeared to Laurie's family and friends; it lingers in the shadows of Laurie's room. Is Laurie going crazy-or is someone, something, trying to take over her life? As Laurie begins to ask questions about her ancestry, she...

Fifth-grade sleuth Cam Jansen uses her photographic memory to catch a thief during a department store sale