Sixteen-year-old Jacob, having traveled to a remote island after a family tragedy, discovers an abandoned orphanage, and, after some investigating, he learns the children who lived there may have been dangerous and quarantined and may also still be alive.

For months, Summer is trapped in a cellar with the man who took her and three other girls: Rose, Poppy, and Violet.

"Recently orphaned Jane accepts an unexpected invitation from an old acquaintance to an island mansion where she will face five choices that could ultimately determine the course of her newly untethered life"--

When her father, an ex-soldier suffering from post-traumatic stress disorder or PTSD, is arrested for murder, Emily's efforts to exonerate him take her into the woods to play the Game, an extreme version of childhood games.

"Teen Portland Search and Rescue team member Nick Walker becomes a prime suspect in a murder"--

When her friend Monday Charles goes missing and Monday's mother refuses to give her a straight answer, Claudia digs into her disappearance. Monday Charles is missing, and Claudia seems to be the one person who notices. They've always been inseparable, and when Monday doesn't show up for school for two weeks, Claudia knows that something is wrong. Monday's mother refuses to give Claudia a straight answer, and her sister April is even less help. How...

When her best friend Cassie sends her a cryptic note asking for help, Wylie sets out to find her with Jasper, the guy who set Cassie off the rails. As Wylie and Jasper head farther and farther north into the dense woods of Maine, Wylie struggles to control her growing sense that something is really wrong.

"A math-whiz from a trailer park discovers she's the only student capable of unravelling complex clues left by a serial killer who's systematically getting rid of her classmates"--

Fifteen-year-old Julia Beaufort-Stuart wakes up in a hospital not knowing how she was injured, and soon befriends Euan McEwen, the Scottish Traveller boy who found her, and later, when a body is discovered, she experiences the prejudices his family has endured and tries to keep them from being framed for the crime.

When dinosaur bones from a recent dig mysteriously go missing, and an unidentifiable beast starts attacking animals and people, leaving their mangled bodies behind, Abigail and her eccentric employer R.F. Jackaby, investigators of the supernatural in 1892 New England, find themselves hunting for a thief, a monster, and a murderer.