Cahills are being kidnapped by a shadowy group known only as the Vespers. Now Amy and Dan have only days to fulfill a bizarre ransom request or their captured friends will start dying. Amy and Dan don't know what the Vespers want or how to stop them. Only one thing is clear. The Vespers are playing to win, and if they get their hands on the Clues ... the world will be their next hostage.

It started with a kidnapping. A shadowy organization known only as the Vespers snatched seven members of the Cahill family and demanded a series of bizarre ransoms from around the world. Thirteen-year-old Dan Cahill and his older sister Amy began a global treasure hunt, determined to bring back whatever Vesper One needed, so long as it kept the hostages safe. But when they deliver the last ransom, Amy and Dan discover Vesper One's terrifying endgame....

Anne Shirley is now sixteen and preparing to take up her new role as a teacher in the local school. She has her best friend Diana Barry by her side and Gilbert Blythe, her childhood enemy, who is now a trusted ally and a fellow teacher. As impulsive as ever, Anne launches into her new career with characteristic vigor.

Orphaned Judy Abbot relates her college adventures in letters to the mysterious benefactor that she calls Daddy-Long-Legs.

In 2032, sixteen years after a deadly virus has wiped out most of the earth's population, Eve discovers the terrible fate that awaits students when they graduate from their all-girls school, and she sets off on a treacherous journey into the wilds of The New America, searching for a place where she can survive.

After her mother's death, Rachel and her adopted sister Hilary are taken in by Aunt Cora, who runs a dancing school where Rachel's spoiled cousin Dulcie is the star pupil.

Nine-year-old Nicholas Benedict, a boy without parents and afflicted with an unfortunate nose and narcolepsy, is sent to a new orphanage where he encounters vicious bullies, selfish adults, strange circumstances, and a mystery that could change his life forever.

"Orphans Philippa, Sam, Thomas, and Max must find out who stole a valuable artifact in order to save to save their home, Dumfrey's Dime Museum of Freaks, Oddities, and Wonders"--Provided by publisher.

"In 1859, eleven-year-old Nell goes to live with her aunt, Kate Warne, the first female detective for Pinkerton's National Detective Agency. Nell helps her aunt solve cases, including a mystery surrounding Abraham Lincoln, and the mystery of what happened to Nell's own father" --

The Alden children discover another mystery when they agree to help injured Mr. Yee tend to his plot in the community garden and find out that vegetables are going missing and plots are being vandalized.