When a Connecticut teenager inherits vast wealth and an eccentric estate from the richest man in Texas, she must also live with his surviving family and solve a series of puzzles to discover how she earned her inheritance.

"Maisie sets out to uncover the true identity of the new lodger at her gran's boarding house and uncovers a more complicated--and dangerous--mystery than she could have imagined"-- Provided by publisher.

Nine-year-old Nicholas Benedict, a boy without parents and afflicted with an unfortunate nose and narcolepsy, is sent to a new orphanage where he encounters vicious bullies, selfish adults, strange circumstances, and a mystery that could change his life forever.

In their latest case, animal detectives Bunny and Jack help Mabel the duck find out who stole the sugar cubes from her tea room.

Benny's friend accompanies the Aldens to the South Seas for a vacation on a supposedly deserted island where they find an unusual mystery.

In order to save the reputation of the Wonderland, P.T. and Gloria must find the culprit who stole a royal tiara from the hotel.

Ten mysteries for ten-year-old Encyclopedia Brown, his partner, Sally, and the reader to solve. Solutions are given at the back of the book.

Dan Cahill, thirteen, and his sister Amy face their greatest threat yet--an enemy that has found a way to use the power of the Cahills against them. From hot deserts up to the Arctic Circle, Dan and Amy try to escape this enemy--until Dan faces the worst thing he could imagine: his own sister's betrayal.

Stevie Bell seemed to be on the cusp of the decades-old kidnapping and murder of Albert Ellingham's family. But a classmate's murder-- which Stevie solved-- convinced her parents to pull her out of Ellingham Academy. Then politician Edward King arrives at her house to offer a deal: he will bring Stevie back to Ellingham if she will play nice with his son, David, a fellow classmate. King is in the midst of a campaign and can't afford his son stirring...

While volunteering at the local zoo, Robyn, Nick and Trevor learn about a bear poaching operation and set about solving another mystery.