Publisher Annotation: Ali Cross just solved his first real case. Alex Cross knows it's only a matter of time before his son finds his way into more trouble. Neither of them expected Ali to get caught up in another case so quickly. Ali and his friends were just hanging out in Anacostia Park . . . then they became witnesses to a crime. Alex wants Ali to stay far away from the investigation. But Ali isn't going anywhere, not when his new friend Zoe...

Through a series of letters to his parents, Little Wolf relates his adventures as a member of Yelloweyes Forest Detective Agency, crime solvers of the Frettnin Forest, as they investigate a series of mysterious disappearances.

Aided by his friends, Ace Lacewing, Bug Detective, sets out on the trail of kidnappers who took Queenie Bee.

"In this illustrated early chapter book, super sleuths Lark and Connor Ba must investigate a threatening note and stolen watch while they are helping set up for the Run in the Sun fundraiser." --

After being mugged, Scratch Murphy the flea asks Ace Lacewing, Bug Detective, for help in finding the culprit who stole money from his Six Legs Amusement Park.

Publisher Annotation: After breaking school rules the last time she solved a mystery, Drew Leclair has a new mission: get good grades, stay under the radar, and do not get suspended. But when Drew finds out that there's a thief breaking into the P.E. lockers and leaving behind cryptic ransom notes, it's hard to resist cracking a new case. Especially when one of the victims is her best friend Shrey's crush, and he's practically begging her to get involved....

Nancy becomes involved in the search for a missing will.

Thirteen-year-old Agatha Oddlow's set to become the youngest member of the Gatekeepers' Guild, but before that, she's got a mystery to solve. There's been a murder at the British Museum and, although the police are investigating, Agatha suspects that they're missing a wider plot going on below London - a plot involving a disused Tube station, a huge fireworks display and five thousand tonnes of gold bullion.

The reader can use visual clues and deductive reasoning to help Daisy and Ridley solve forty puzzling mysteries.

A pigeon private eye captures a birdnapper with help from his feathered friends.