"It's been two weeks since Polly St. James went missing. The police, the headmistress of Torrey-Wells Academy, and even her parents have ruled her a runaway. But not Maren, her best friend and roommate. She knows Polly had a secret that she was about to share with Maren before she disappeared— something to do with the elite, ultra-rich crowd at Torrey-Wells. Then Maren finds an envelope hidden among Polly's things: an invitation to the Gamemaster's...

Natasha Romanov, called the Black Widow, agent of S.H.I.E.L.D, rescues a young girl from Ivan, the man who once trained her as an assassin--and eight years later she is called upon to protect the teenager Ava has become from a threat from the past--and possibly from S.H.I.E.L.D itself.

For 500 years the Jaguar Cup, sacred to the Silver Jaguar Society, was hidden in a cave on the coast of Costa Rica--so when a fake copy shows up on display in America, it is up to José, Anna, and Henry, junior members of the society, to travel to Costa Rica and rescue the real cup from thieves.

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.

Twelve-year-old Travis is invited to become a member of The Legend, Lauer Middle School's most exclusive secret society, but first he must solve seven puzzles.

While attending the Fine and Ancient Institute for the Royal to learn how to become princesses, Dalia and Dominga devise a plan to join a secret society of villains at the Bewitched Academy of the Dreadful.

Horace F. Andrews, armed with a strange wooden box, and Chloe Burke, wearing a mysterious dragonfly pendant, become entangled in a secret and ancient society striving to protect powerful devices from the evil Riven.

Starting her junior year at an exclusive East Coast girls' boarding school on a lacrosse scholarship, small-town Sadie uncovers a murder mystery after being inducted into a powerful secret society.

When Rye O'Chanter is declared an outlaw from her own village, she finds herself stuck on a strange remote island. But the island comes to feel much less remote when the battle over the future of the Luck Uglies moves to its shores.

Having discovered a magical society beneath the exhibits at the Clarksville City Zoo where animals and humans live harmoniously together as equals, Noah and his friends must protect the secret zoo at all costs.