Noah, Megan, Richie, and Ella must navigate a maze of never-ending aquariums in the Secret Zoo to rescue their animal friends.

Thirteen-year-old Clivo Wren learns that his recently deceased father was not an archaeologist as he was told, but rather a cryptid catcher, known for finding elusive mythological creatures, and now Clivo must pick up where his father left off and track down a cryptid whose blood grants immortality before the knowledge falls into the wrong hands.

Siblings Everett and Bea set out with their fellow Inklings to uncover the truth behind a new, and mysterious, type of magical ink that is appearing around the world.

When an alternate 1875 steam-driven America rediscovers electricity, the lifeblood of the Mangleborn monsters, and the secret society to protect humanity from the Mangleborn is compromised, twelve-year-old Archie must assemble a team of seven young heroes to save the world.

When the students at Rosewood Hall are targeted by members of a secret society, Lottie Pumpkin and Ellie Wolf must find the culprit before the school is forced to close its doors.

"Hidden beneath the regular Clarksville City Zoo, the Secret Zoo is an incredible world where animals and humans peacefully coexist as equals. But even in the Secret Zoo, there are dangers and forbidden places. When Noah and his friends discover tarantulas roaming around, they're sure the bad omen can only mean one thing: the Shadowist is nearby. Closing the portals is the only option to save all the animals at Clarksville City Zoo...But when Mr....

When the guardians of the Copernicus legacy are targeted for assassination by the evil Galina Krause, Wade, Darrell, Lily, and Becca must find the remaining relics to defeat their enemies.

When an unknown entity forces Connie to create destructive storms, the head of the Chartmouth Chapter for the Society for the Protection of Mythical Creatures rescinds Connie's membership, leaving her on her own to discover what is happening.

"Only six weeks after a handful of teenage sorcerers defeated a team of anti-magic mercenaries called the Euclideans, Trish, Owen, and Perry are called back into action when they discover that the world's cryptids (aka magical creatures) are disappearing. They're partnered with brusque team leader Jacinda Greyeyes and their former nemesis Bryan Ferretti in a mission to travel all over North America, collecting famous cryptids like the jackalope, the...

After their father's research experiment at the British Museum unleashes the Egyptian god Set, Carter and Sadie Kane embark on a dangerous journey across the globe--a quest which brings them ever closer to the truth about their family, and their links to a secret order that has existed since the time of the pharaohs.