"A strange telegram lures fourteen-year-old Amy Cahill and her younger brother, Dan, deep into Russia and away from the only trustworthy adult they know. Signed with the initials NRR, the telegram launches a race to uncover a treasure stolen by the Nazis and the truth behind the murder of the last Russian royal family. All too soon, the treasure hunt starts to smell like a Lucian trap. But the bait might just be irresistible--what will Amy and Dan...

"Amy and Dan Cahill have been located once again, this time in the company of the notoriously unreliable Alistair Oh. Could they have been foolish enough to make an alliance? Spies report that Amy and Dan seem to be tracking the life of one of the most powerful fighters the world has ever known. If this fearsome warrior was a Cahill, his secrets are sure to be well-guarded--and the price to uncover them just might be lethal."--Publisher.

Winter has come to River Heights, and the girls are busy making a snowman--affectionately named Sherlock. They are distracted, however, by one of their classmates. It seems Deirdre has changed her name to Madame Chocolata, and she's reading marshmallows to tell fortunes. Then Sherlock disappears, and an outbreak of pranks plagues the kids. Could Sherlock have come to life--or is someone less frosty behind everything?

Nancy and her friends investigate when it appears the auditions for the new reality television program "Kids Can Dance" are being sabotaged.

The Cahills aren't the only family searching for the Clues. . . .The Cahills thought they were the most powerful family the world had ever known. They thought they were the only ones who knew about Gideon Cahill and his Clues. The Cahills were wrong. Powerful enemies -the Vespers- have been waiting in the shadows. Now it's their time to rise and the world will never be the same. In Vespers Rising, a brand new 39 Clues novel, bestselling authors Rick...

When the Vespers continue their abductions and cross a line by kidnapping Atticus, an eleven-year-old non-Cahill civilian and Dan's only friend, Dan and Amy confront their biggest challenge ever in order to keep Atticus alive.

Looking forward to participating in River Heights' annual Fall Festival, Nancy, Bess, and George prepare designs for the pumpkin-decorating contest and are on the case when the designs are stolen and their decorating supplies are smashed.

When seven members of their family were kidnapped, thirteen-year-old Dan Cahill and his older sister, Amy, got ready for the fight of their lives. But their enemy, a terrifying group known as the Vespers, remained frustratingly elusive. They stay in the shadows, picking off Cahills one by one.And now the Vespers have landed their most serious blow yet - a blow that strikes at the very heart of the Cahill family. Because Amy and Dan discover that there's...