After tragic events tear Mickey Bolitar away from his parents, he is forced to live with his estranged Uncle Myron and switch high schools, where he finds both friends and enemies, but when his new new girlfriend, Ashley, vanishes, he follows her trail into a seedy underworld that reveals she is not what she seems to be.

Santa Claus is missing, and a host of arctic animals searches for him in the snow.

Sam Faulkner travels back in time to medieval Ireland, ancient Egypt and Renaissance Bruges in search of his missing father.

"Cat sets out to discover what happened to her childhood friend when she discovers that he's been missing for months"--

When Henry's magic teacher, The Amazing Arthur, goes missing right before the Greenfield Magic Shop's annual magic show, Henry and his sibilings look into Arthur's disappearance.

While Jake continues searching for his father and is sent by the obsidian mirror to multiple times in the past, Sarah and Venn battle with Summer for control of a powerful coin.

Auntie Departed invited all of Ghoulia's friends, and a grouchy cousin she had never met, to a surprise dinner party, but the biggest surprise is that Auntie is missing. Includes instructions on how to write an invitation and how to plant a garden.

Eleven-year-old musical genius Daphna Whispers embarks on a global journey to find her missing mother, only to uncover a shocking secret about the Blatt School for the Insanely Gifted where she is a student.

After Claire wakes up alone on a mountain with no memory of how she got there, she learns her best friend Kat and Kat's boyfriend are missing and Kat's past is full of secrets.