by Stuart Gibbs
Twelve-year-old Teddy Fitzroy is the prime suspect when FunJungle's newly-acquired koala goes missing, thanks to a prank staged by middle school bully Vance Jessup.
Revenge of Superstition Mountain
by Elise Broach
The Barker brothers and their friend Delilah secretly climb up to Superstition Mountain one last time, hoping to solve the remaining mysteries, including whether the librarian is really the ghost of Julia Thomas, what was their uncle Hank's role in discovering the gold mine, and especially, who is trying to kill them.
Shadows at Predator Reef
by Franklin W. Dixon
When Frank wins an internship at the Bayport Aquarium, he's stoked at the chance to not only earn school credit, but to also geek out about one of his favorite subjects--aquatic life. And his brother Joe is equally jazzed about taking scuba diving lessons. But both boys' excitement comes screeching to a halt when the aquarium's most valuable asset goes missing: a rare two-hundred-pound sea turtle named Captain Hook.
The Frog Who Croaked
by Jarrett J. Krosoczka
Paired together after a veteran detective retires, Platypus Police Squad members Rick Zengo, a hotshot rookie, and Corey O'Malley, a hard-nosed old-timer, struggle with their differences while tackling their first case involving a missing schoolteacher and a duffle bag filled with illegal fish.
The Phantom of Nantucket
by Carolyn Keene
Embarking on a dream vacation in Nantucket, Nancy, Bess, and George attend the opening of an exhibit at a local museum where a vandal has left a threatening message, prompting the girls to investigate numerous suspects.
The Terror of the Bigfoot Beast
by Laurie Sutton
A relaxing weekend at a cabin in the woods turns into an adventure when Scooby Doo and the gang apparently encounter Bigfoot--and the reader must help them solve this mystery.
Twelve Minutes To Midnight
by Christopher Edge
Thirteen-year-old Penelope, the secret author of macabre tales in "The Penny Dreadful," Victorian London's bestselling magazine, investigates the mystery of a strange phenomenon occurring in the local insane asylum.
Under the Egg
by Laura Marx Fitzgerald
Her grandfather's dying words lead thirteen-year-old Theodora Tenpenny to a valuable, hidden painting she fears may be stolen, but it is her search for answers in her Greenwich Village neighborhood that brings a real treasure.