Accompanied by her daemon, Lyra Belacqua sets out to prevent her best friend and other kidnapped children from becoming the subject of gruesome experiments in the Far North.

As the boundaries between worlds begin to dissolve, Lyra and her daemon help Will Parry in his search for his father and for a powerful, magical knife.

When popular Lizzie Lovett goes missing, seventeen-year-old Hawthorne, a lonely misfit, finds herself becoming obsessed with solving the mystery.

Nick and his friend Marta decide to investigate when a mysterious fire starts near a Florida wildlife preserve and an unpopular teacher goes missing.

Gulliver Dowd, a private investigator, takes on a missing persons case when he learns that the runaway girl is his own child--the product of a high school romance.

A girl's quest to find her father leads her to an extended family of magical fighting booksellers who police the mythical Old World of England when it intrudes on the modern world. From the bestselling master of teen fantasy, Garth Nix. "In a slightly alternate London in 1983, Susan Arkshaw is looking for her father, a man she has never met. Crime boss Frank Thringley might be able to help her, but Susan doesn't get time to ask Frank any questions....

Seventeen-year-old Cullen's summer in Lily, Arkansas, is marked by his cousin's death by overdose, an alleged spotting of a woodpecker thought to be extinct, failed romances, and his younger brother's sudden disappearance.

Fourteen-year-old Enola Holmes, disguised as a beautiful woman, finds clues in floral bouquets as she searches for the missing Doctor Watson, a companion of her famous older brother, Sherlock.

"When Jeremy Johnson Johnson's strange ability to speak to the ghost of Jacob Grimm draws the interest of his classmate, Ginger Boltinghouse, the two find themselves at the center of a series of disappearances in their hometown"--

When sixteen-year-old orphan Tessa Fell's older brother suddenly vanishes, her search for him leads her into Victorian-era London's dangerous supernatural underworld, and when she discovers that she herself is a Downworlder, she must learn to trust the demon-killing Shadowhunters if she ever wants to learn to control her powers and find her brother.