Sammy Keyes mysteries

"The most winning junior detective ever in teen lit. (Take that, Nancy Drew!)" —Midwest Children's Book Review
What Sammy should have done was put the binoculars down and call 911. What she does instead is tighten up the focus on her right eye to get a better look. There's something very familiar about this thief.
But when Sammy eventually spills her story to Officer Borsch, he doesn't believe her. He treats...

Sometimes it's hard to tell the saints from the sinners...
Sammy was supposed to be in church to get out of trouble, not into more. But while she's at St. Mary's working off some school detention time, a valuable cross goes missing and Sammy becomes the prime suspect. 
She knows she's innocent, and also what it feels like to lose something important. Her treasured catcher's mitt has been stolen—heartless Heather...

While celebrating the New Year with a friend, Sammy encounters a mystery involving an elderly neighbor, a pioneer cabin, and a century-old family feud.

When thirteen-year-old Sammy finds herself with an abandoned baby on her hands, she sets out to find the young mother, who may belong to a gang, and accidentally jeopardizes her position on the softball team.

"The most winning junior detective ever in teen lit. (Take that, Nancy Drew!)" —Midwest Children's Book Review

It's Sammy's birthday, which should be a good thing, except that Dorito, Sammy's cat, is missing, and while Sammy's searching for him, she finds three dead cats in dumpsters around town. Worse still, Miss Kitty, a psycho cat lady, blames Sammy when it turns out one of the dead cats belonged to her....

"The most winning junior detective ever in teen lit. (Take that, Nancy Drew!)" —Midwest Children's Book Review

This is not the summer camping trip of Sammy's dreams. She imagined shady glades, meandering streams, a deer or two. What she gets are scrubby shrubs, blazing sun, rattlesnakes, ticks, and scorpions. Her fellow campers are desperate to catch a rare glimpse of an endangered condor. To Sammy,

...

When her history teacher begins receiving death threats and her own name is near the top of the suspect list, eighth-grader Sammy is determined to find the real perpetrator, but she is distracted by her mother's relationship problems, her almost-boyfriend inexplicably avoiding her, and her duties as a reluctant bridesmaid.

"Teen sleuth Sammy Keyes solves a classic locked-room mystery aboard a cruise ship"--Provided by publisher.