With the help of a long lost relative, and a little magic, Sabrina Grimm and her sister Daphne try to find out who has kidnapped their parents and rescue them.

Eighteen-year-old, mystery-loving Birdie's new job at a historic Seattle hotel leads her and her co-worker, Daniel, to a real mystery about a reclusive writer who resides there.

Thirteen-year-old Q and fifteen-year-old Angela expect their lives to become complicated when his mother and her father, wildly popular musicians, marry, but not that they will face spies and terrorists in Philadelphia, Pennsylvania.

Fighting for survival after being separated into pairs in the aftermath of a betrayal, the Project Osiris clones search for notorious mob boss Gus Alabaster while tracking down Eli's elusive DNA donor alongside a surprising new ally.

"Henry, Jessie, Violet, and Benny used to live in a boxcar. Now they have adventures everywhere they go. At a lighthouse, the children find a mystery in the night!"

In 1989 someone is threatening to steal the crown jewels, so the Queen of England summons Mac B. to England to protect them--and when they are stolen from a locked dungeon cell, where Mac and Holcroft, one of the warders, are supposed to be guarding them, it is up to Mac to figure out how they were stolen, and whether the thief is the descendant of an Irish soldier-of-fortune who tried to steal them in 1671, or someone else entirely.

New friends and a mystery help Aven, thirteen, adjust to middle school and life at a dying western theme park in a new state, where her being born armless presents many challenges.

"Siblings Henry, Jessie, Violet, and Benny used to live in a boxcar. Now they have adventures everywhere they go. What secrets will the children find on their very own island?"--

This book was never meant to exist. No one needs to know the details. Just know this: there's a Merry, a Larry, a missing tooth, and a teachers' strike that is crippling Timmy Failure's academic future. Worst of all, Timmy is banned from detective work. It's a conspiracy of buffoons. He recorded everything in his private notebook, but then the manuscript was stolen. If this book gets out, he will be grounded for life. Or maybe longer. And will Timmy's...

When her friend Monday Charles goes missing and Monday's mother refuses to give her a straight answer, Claudia digs into her disappearance. Monday Charles is missing, and Claudia seems to be the one person who notices. They've always been inseparable, and when Monday doesn't show up for school for two weeks, Claudia knows that something is wrong. Monday's mother refuses to give Claudia a straight answer, and her sister April is even less help. How...