When Michael Malone saves a dog, he discovers that he has paranormal abilities, which bring him to the attention of a secret organization, UNICORNE, but he plans to use the ability to find out what happened to his father, who mysteriously vanished three years earlier, and save his new friend, Freya.

The two kids were last seen in Egypt, hunting for one of the 39 Clues that could make them the most powerful people on earth. But no one has seen the siblings since. Has the ruthless Irina Spasky finally tracked them down? Or worse-- the Madrigals? "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...

Sixteen-year-old Gwen, the newest and final member of the secret time-traveling Circle of Twelve, searches through history for the other time-travelers, aided by friend Lesley, James the ghost, Xemerius the gargoyle demon, and Gideon, the Diamond, whose fate seems bound with hers.

Wade, Lily, Darrell, and Becca fly from Texas to Germany for the funeral of an old family friend. But instead of just paying their respects, they wind up on a dangerous, mind-blowing quest to unlock an ancient, guarded secret that could destroy the fate of the world.

Since their mother's death, Carter and Sadie have become near strangers. While Sadie has lived with her grandparents in London, her brother has traveled the world with their father, the brilliant Egyptologist, Dr. Julius Kane. One night, Dr. Kane brings the siblings together for a "research experiment" at the British Museum, where he hopes to set things right for his family. Instead, he unleashes the Egyptian god Set, who banishes him to oblivion...

Grace Blakely believed that finding the truth about her mother's murder would finally give her peace, but now she knows that it is only the beginning of the secrets that will dominate her life--and make her a target on Embassy Row in Adria.

Tasked to expose a coin counterfeiting scheme, Luca and Isolde, whose romantic attraction continues to grow, travel to Venice in 1454, where they meet an alchemist who plans to create the Philosopher's Stone, a mystical substance said to be capable of turning base metals into gold and producing the elixir of life.

The Alden siblings continue their mission to return lost artifacts around the world to their rightful homes by visiting the Pyramids in Egypt and Stonehenge in England, among other places, while outwitting a thief along the way.

"Adelina Amouteru survived the blood fever, a deadly illness that killed many, but left others with strange markings and supernatural powers. Cast out by her family, Adelina joins the secret society of the Young Elites and discovers her own dangerous abilities"--

Adelina Amouteru's heart has suffered at the hands of both family and friends, turning her down the bitter path of revenge. Now known and feared as the White Wolf, she and her sister flee Kenettra to find other Young Elites in the hopes of building her own army of allies. Her goal: to strike down the Inquisition Axis, the white-cloaked soldiers who nearly killed her. But Adelina is no heroine. Her powers, fed only by fear and hate, have started to...