Sixteen-year-old Hope Walton travels back in time to help rescue her mother, a member of the secret society of time travelers, who is trapped in twelfth-century England in the age of Eleanor of Aquitaine.

As the Council attempts to strip Charlotte of her power, sixteen-year-old orphaned shapechanger Tessa Gray works with the London Shadowhunters to find the Magister and destroy his clockwork army, learning the secret of her own identity while investigating his past.

When their parents' seedy old motel burns down on the same night they are visited by a strange man covered in skeleton tattoos, Cyrus, Antigone, and their brother Daniel are introduced to an ancient secret society, and discover that they have an important role in keeping it alive.

After eliminating her best-friend-turned enemy, Airana Osgood feels on top of the world at the prestigious Atherton-Pryce Hall, but when Lexa Greene discovers a terrible secret, Ariana's fate hangs in the balance.

A fateful encounter in the Tesla Suite of the New Yorker Hotel unlocks Lucy Phelps' dormant electrical powers and thrusts her into a centuries-old battle between rival alchemical societies.

"Zachary Ezra Rawlins is a graduate student in Vermont when he discovers a rare book hidden in the stacks. As he turns the pages, entranced by tales of lovelorn prisoners, key collectors, and nameless acolytes, he reads something strange: a story from his own childhood. Bewildered by this inexplicable book and desperate to make sense of how his own life came to be recorded, Zachary uncovers a series of clues -- a bee, a key, and a sword -- that lead...

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

Since learning she is the Ruby, the final member of the time-traveling Circle of Twelve, nothing has gone right for Gwen and she holds suspicions about both Count Saint-German and Gideon, but as she uncovers the Circle's secrets she finally learns her own destiny.

In 1453, seventeen-year-old Luca Vero, accused of heresy and expelled from his monastery, is recruited to help investigate evil across Europe but frees his first subject, Isolde, from captivity in a nunnery, and together they seek the one who defends theboundaries of Christendom and holds the secrets of the Order of Darkness.

Hikaru is forced to repay an $80,000 debt by working for the school's swankiest, all-male club--as a boy.