Minutes before she died Grace Cahill changed her will, leaving her descendants an impossible decision: "You have a choice - one million dollars or a clue." Grace is the last matriarch of the Cahills, the world's most powerful family. Everyone from Napoleon to Houdini is related to the Cahills, yet the source of the family power is lost. 39 Clues hidden around the world will reveal the family's secret, but no one has been able to assemble them. Now the clues race is on, and young Amy and Dan must decide what's important: hunting clues or uncovering what REALLY happened to their parents. The 39 Clues is Scholastic's groundbreaking new series, spanning 10 adrenaline-charged books, 355 trading cards, and an online game where readers play a part in the story and compete for over $100,000 in prizes. The 39 Clues books set the story, and the cards, website and game allow kids to participate in it. Kids visit the website - www.the39clues.com - and discover they are lost members of the Cahill family.Experience the complete adventure with Dan and Amy Cahill in this fantastic 10 book series collection - including the finale 39 Clues Book 10: Into the Gauntlet!

A guide to the characters and situations in "The 39 Clues" outlines the Cahills' secrets, including hidden facts, strategies, agents, lost founders, secret bases, and scandals, as well as information about all branches of the family.

International bestseller David Baldacci pens the stunning conclusion to Cahills vs. Vespers! 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. The objects he demanded are vital pieces in a Vesper plot that will harm millions of innocent people. Now the two siblings and their friends are in an all-out sprint to stop Vesper One . . . before the whole world goes BOOM.

Can Sona be the best big sister ever when she’s not sure she even wants a baby sister or brother? Brimming with warmth and charm, this story set in India will resonate with new older siblings everywhere. Sona Sharma's house is full of three generations of people who joke often and argue sometimes. Relatives come over unannounced, the phone rings frequently, and friends drop by all the time. Then one day Amma tells Sona that she is going to have a baby. Is that good? Sona isn’t so sure. She doesn’t want to share her room or her things with a new baby, not to mention the attention of Amma, Appa, Thatha, and Paatti. And despite Amma's assurance that the sky always has room for new stars, Sona doesn’t feel stretchy or bighearted like the sky. But when she learns there will be a baby-naming ceremony, she’s determined to find the best name for her new brother or sister—one as nice as her own, a Hindi word for “gold.” Perfectly pitched to young readers, this tale of warming up to change is followed by a glossary of words from India to explore in the story.

When an evil professor begins threatening New Mouse City with terrible inventions, Geronimo Stilton is enlisted by local authorities to embark on a top-secret mission to outer space to thwart a nefarious plot. Original.