"Following clues left by their missing father, twelve-year-old twins Bickford and Rebecca Kidd sail from the Caribbean to New York City with their siblings to finish the dangerous quest of their world-famous treasure-hunting parents"--Provided by publisher.

Reynie, Kate, Sticky, and Constance, all graduates of the Learning Institute for the Very Enlightened and members of the Benedict Society, embark on a scavenger hunt that turns into a desperate search for the missing Mr. Benedict.

Life is confusing for seventh-grader Maggie, who must track down a missing person and find out who is behind a string of dog eggings at the local dog run, while also dealing with issues involving her brother, two of her friends.

When eleven-year-old Gregor and his two-year-old sister are pulled into a strange underground world, they trigger an epic battle involving men, bats, rats, cockroaches, and spiders while on a quest foretold by ancient prophecy.

Despite their differences, Daphne and Velma were able to solve the mystery of The Vanishing Girl. But there are a lot of secrets buried in the town of Crystal Cove. And the biggest case of all still remains unsolved... why did the town's original settlers all disappear? What happened to them? Velma is determined to find out... especially because her family's ancestors were among the disappeared. And now that she and Daphne have started to get a reputation...

Nancy, Ned, and George attend the show of a magician named Dan, in which he makes his assistant disappear, and Nancy investigates when the girl fails to reappear.

Alex Cross' son, Ali, is eager to follow in his father's footsteps as a detective, but when his best friend goes missing, what price will he have to pay to solve the mystery?