"Twelve-year-old friends Alex and Asha have a detective agency but no cases--until Alistair Fairfleet goes missing and leaves them a clue."--

Jamie Watson and Charlotte Holmes are looking for a winter break reprieve in Sussex after a fall semester that almost got them killed. But nothing about their time off is proving simple, including Holmes and Watson's growing feelings for each other. When Charlotte's beloved uncle Leander goes missing from the Holmes estate -- after being oddly private about his latest assignment in a German art forgery ring -- the game is afoot once again, and Charlotte...

"James 'Gum' Shoo's art class heads to the museum. They've been learning about forged art, but they never expected to find a fake in the gallery! Only Gum and his gumshoe friends will be able to solve this museum caper"--Unedited summary from book.

When twelve-year-old painter Esther gets stuck at math camp rather than art camp, she is determined to prove herself but someone leaves cryptic messages intended to drive her away.

Follows a group of bumbling dog detectives and their newest cat recruit as they sniff out the identity of an art forger.