Eleven-year-old Chester and his classmate Skye, tasked with a complex puzzle-solving mission, discover the key to their spy assignment is to stop a heist, but cracking the code could mean finding out things are not always what they seem.

"When Seth and Julia are approached by a secretive man and asked to solve a decades-old scavenger hunt, they accept. But they're not the only detectives the man has recruited for this Waldameer mystery. Can Seth and Julia find the treasure before the team of cheaters? Who is the mystery man, and why does he always wear a disguise? The latest Waldameer mystery sends Seth, Julia, Bek, and Semira on a puzzling race as they compete to solve the curious...

Everybody starts somewhere, and once upon a time Luigi Lemoncello was a thirteen-year-old boy in a large family who dreamed of being a showman; he gets his first chance working for a famous barker at a summer carnival where a mysterious puzzle leads him and his friends on a treasure hunt.

Jake, Amber, and Wes encounter new dangers and find their friendship tested as they follow the clues Jake’s grandfather hid away in the old scrapbook. The stakes are higher, and the history goes deeper as the three kids put their heads together to solve a puzzle that is perhaps hundreds of years in the making.

"After a masked figure scares Seth and Julia in the whacky Shack, strange things start happening. Some say the ride is haunted by an angry ghost. Who is causing all the trouble? Is it related to the award ceremony happening in a few days? From the ambitious journalist to the pushy salespeople, there is no shortage of suspects in this Waldameer mystery. Join Seth, Julia, Tyren, and Semira as they race to protect one of Waldameer's most beloved rides!"--Page...

"Britt Hanson embarks on a competitive scavenger hunt in England that takes her to the locations of classic British novels--and along the way, she meets a bookish British boy who is not allowed to help her with the clues but might make the trip take some unexpected turns"--

"Jake Potter is back on Dewees Island for another summer with his beloved grandmother, Honey. This time, Jake is excited that his dad will be there as he continues to recover from his injuries sustained in Afghanistan. But Jake also knows they both need get used to a new normal, which isn't easy. Jake also discovers that his two best friends, Macon and Lovie, are struggling as well. Macon is adjusting to being a big brother, while Lovie is navigating...

Marshall refuses to believe that gingerbread men can run, even after a series of clues leads his class on a riddle-filled gingerbread cookie hunt.

"DANGER! OPEN IF YOU DARE, says the ominous message written on a water park locker. As seasoned Waldameer detectives, Seth and Julia can't pass up a mystery, and they accept a secret mission from an unknown gamemaster. While the mission has them solving riddles and decoding hidden messages, Seth and Julia investigate the gamemaster, including something called Operation Neptune. Does the gamemaster work for a top-secret agency? What's Operation Neptune,...

"Jake Potter is back on Dewees Island for another summer with his beloved grandmother, Honey. This time, Jake is excited that his dad will be there as he continues to recover from his injuries sustained in Afghanistan. But Jake also knows they both need get used to a new normal, which isn't easy. Jake also discovers that his two best friends, Macon and Lovie, are struggling as well. Macon is adjusting to being a big brother, while Lovie is navigating...