Hazel, a twelve-year-old aspiring detective, must decode a series of ominous clues tied to a century-old tragedy to find a missing teenager before it is too late.

When Case arrives at her best friend Drea's isolated West Texas home and finds her missing, she embarks on a search for clues about Drea's disappearance while facing the unsettling, cult-like and possibly murderous behavior of Drea's roommates.

Enola Holmes, now independent and pursuing her profession as a scientific perditorian, joins forces with her brother Sherlock to solve the mysterious disappearance of Wolcott Balestier, a friend of Rudyard Kipling, as they uncover the ruthless world of book publishing and seek to bring him back safely.

Sixteen-year-old Rue Silver, whose mother disappeared weeks ago, believes she is going crazy until she learns that the strange things she has been seeing are real, and that she is one of the faerie creatures, or Good Neighbors, that mortals cannot see.

A research trip to the Amazon rainforest turns into a dangerous mystery when Ring and Asia Wilde's scientist mother goes missing, and in order to rescue her, they must use their skills to survive the jungle.

Seventeen-year-old amateur sleuth Iris and her sapphic detective agency investigate the disappearance of Iris's cheerleader ex-girlfriend, who also happens to be the creator of a notorious true-crime podcast about Iris's missing older sister.

When a traveling theater production comes to town, Jessie is excited to write a profile of its star, but when the performer goes missing days before the show is set to make its debut, Jessie realizes that something big is going on behind the scenes.

Seventeen-year-old cursebreaker Marlow Briggs reluctantly pretends to be in love with a powerful noble to gain entry into an illustrious--and deadly--society that holds clues to her mother's disappearance.

"When her mom disappears from their small Texas town, paleontology-loving Haven is determined to find her. But as she uncovers truths about her mom's identity, Haven also uncovers a monstrous family secret. Her mom can take the shape of a human and, in the right environment, also turn into an amphibious creature known as a kitskara. And now that she's growing up, Haven is discovering she has this ability, too. This newfound identity is her only clue...

When her boyfriend leaves her for her best friend, Jade joins a semester long cruise program unaware that the two are also onboard, and when her ex-boyfriend is murdered and his new girlfriend goes missing, Jade must dig into her shipmates' lives to find the murderer and clear her name.