"A strange telegram lures fourteen-year-old Amy Cahill and her younger brother, Dan, deep into Russia and away from the only trustworthy adult they know. Signed with the initials NRR, the telegram launches a race to uncover a treasure stolen by the Nazis and the truth behind the murder of the last Russian royal family. All too soon, the treasure hunt starts to smell like a Lucian trap. But the bait might just be irresistible--what will Amy and Dan...

Tessa Fell's search for her missing brother leads her into Victorian London's supernatural underworld, where she must learn to trust the demon-killing Shadowhunters if she wants to learn to control her powers and find her brother.

"With new threats looming, Adelina's forced to revisit old wounds, putting not only herself at risk, but every Elite and the very world they live in"--

Ronan and his friends must protect the pure from Ronan's evil father, who is leading a murderous organization called the Bend Sinister, to find and kill all thirty-six pure souls in the world.

In 1665 London, fourteen-year-old Christopher Rowe, apprentice to an apothecary, and his best friend, Tom, try to uncover the truth behind a mysterious cult, following a trail of puzzles, codes, pranks, and danger toward an unearthly secret with the power to tear the world apart.

"Ronan Truelove barely survived his first encounter with his father and the Bend Sinister. Now, he's determined to become one of the Blood Guard, a sword-wielding secret society sworn to protect thirty-six pure souls crucial to the world's survival. Eager to prove he's got what it takes, Ronan is sent on his first mission with his friends Greta and Sammy to visit a weird-sounding school and take a series of tests called the Glass Gauntlet. Paper and...

After being assigned to her university's prestigious and controversial neo-anthropological studies program, eighteen-year-old deaf student Delaney Meyers-Petrov must learn to channel her ability to slip between worlds--and, along with her capricious TA Colton Price, who seems determined to despise her, must uncover buried institutional secrets.

To free himself from an ancient curse, thirteen-year-old Shinji Takahashi must team up with a secret organization of explorers, find a magical font hidden in the jungles of Mexico, and replace a stolen idol.

When farm boy Homer Pudding's explorer-uncle dies and leaves him a droopy dog with a mysterious coin hidden on its collar, it leads him to The City, where they meet Madame La Directeur, the conniving head of the Natural History Museum, who is trying to steal the coin and take Homer's place in a secret society of adventurers

In this all-new very special miniseries, the Aldens have been recruited by a secret society to return lost artifacts and treasures to their rightful locationsall around the world! The Aldens chart a course for Sydney, Australia, and as the children tour the famed Sydney Opera House, their next puzzle and its key, falls right into their laps. They need to find the rightful owner of a rare Australian coin. Using their knowledge about Australia, the...