The town's ten-year-old walking encyclopedia again solves ten neighborhood mysteries. The final solutions to the cases are at the back of the book, giving the reader a chance to compare his skill to that of Encyclopedia Brown.

One month before graduating from his Central Florida high school, Quentin "Q" Jacobsen basks in the predictable boringness of his life until the beautiful and exciting Margo Roth Spiegelman, Q's neighbor and classmate, takes him on a midnight adventure and then mysteriously disappears.

After solving the murder case together, Ravi Singh helped Pip create a podcast that soon went viral, but they both swear off sleuthing. When Jamie Reynolds goes missing on the sixth anniversary of the deaths of Andie Bell and Sal Singh, however, Pip feels it's too big of a coincidence to ignore. With the spotlight on her, can she still follow the clues and uncover even more sinister depths to her hometown?

Jack is determined to find out who stole his old boot, squeaker bone, blanket, and red ball.

After tragic events tear Mickey Bolitar away from his parents, he is forced to live with his estranged Uncle Myron and switch high schools, where he finds both friends and enemies, but when his new new girlfriend, Ashley, vanishes, he follows her trail into a seedy underworld that reveals she is not what she seems to be.

When Nancy's friend Deirdre predicts the future by reading hot cocoa marshmallows and many of the visions come true, Nancy and the gang wonder what it is going on and get even more suspicious when their snowman disappears.

When twelve-year-old aspiring detective Myrtle Hardcastle learns her neighor in quiet Swinburne, England, a breeder of rare flowers, has died she is certain it was murder and that she must find the killer.

"Eight-year-old Ada, who has a knack for science, math, and solving mysteries, teams up with her best friend, Nina, to find a missing dog."--

When eight-year-old Nancy is invited to a sleepover party with a dolls theme, the host's doll goes missing and Nancy tries to solve her first case.

While staying at the Winding River Lodge, the Alden siblings investigate tales of a zombie haunting a lake in the woods.