"Out of the frozen depths of a forest in Omberg, Sweden, a woman stumbles onto the road. Her arms are covered with scratches, her feet are bare, and she has no memory of what has happened. Local police identify her as psychological profiler Hanne Lagerlind-Schoen who, together with her partner, had been helping them investigate a cold case of a young woman's murder. Hanne begins to recover, but cannot recall anything about where her partner is, or...

"Orphans Philippa, Sam, Thomas, and Max must find out who stole a valuable artifact in order to save to save their home, Dumfrey's Dime Museum of Freaks, Oddities, and Wonders"--

Nate the Great goes to San Francisco to solve a mystery with his cousin, Olivia Sharp, who is also a detective.

JJ, the search and rescue dog, is ready for a bit of rest and relaxation after solving the mystery of the missing chicks, but there is a new dog next door who is stealing the attention of Moosh and her chicks and the threat of a roaming possum keeps JJ on the alert.

The star of their favorite television show is kidnapped at the Grand Canyon, and it is up to Dink, Josh, and Ruth Rose to find him.

The mouse who lives in Sherlock Holmes' cellar heads to the lost island of Kataarh to unravel the mystery of a race of miniature cats and their mouse king.

When Lorna Kepler's badly decomposed body was found, the police couldn't discover cause of death. Only Lorna's mother kept the case alive because she thought it was murder.

Nate the Great solves the mystery of the missing picture.

"Nothing exciting ever happens in the small town of Newpark where Brian, Hannah, and twins Chris and Sam live. And when they start their summer vacation, they know it’s the end of an era. The Misfits Club, a club they started when they were 8 years old, is disbanding and they still haven’t managed to solve any real mysteries. But when they persuade new club member Amelia to go and investigate a spooky old house, they unexpectedly discover some...