The Maze of Bones

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.

Strom Warning

The end is near! Book 9 of the #1 NY Times Bestselling series.The shadow of a man in black has followed fourteen-year-old Amy Cahill and her younger brother, Dan, on their worldwide search for 39 Clues that lead to a great power. Amy and Dan know the man in black has tried to kill them. They know he's a Madrigal, the most secretive and terrifying group hunting for the Clues. Amy and Dan have run hard and fast, but they can't escape the man following them. And now, in the wake of a terrible tragedy, he's ready to step out of the darkness for their final confrontation.

Vespers Rising

One False Note

THIS JUST IN! Amy and Dan Cahill were spotted on a train, hot on the trail of one of 39 Clues hidden around the world. BUT WAIT! Police report a break-in at an elite hotel, and the suspects ALSO sound suspiciously like Amy and Dan. UPDATE! Amy and Dan have been seen in a car ...no, in a speedboat chase ...and HOLD EVERYTHING! They're being chased by an angry mob?!? When there's a Clue on the line, anything can happen.

The Viper's Nest

The Emperor's Code

The Sword Thief

There's only one rule in the race to find 39 Clues hidden around the world: Trust no one. But when the hunt leads 14-year-old Amy Cahill and her younger brother, Dan, to Japan, their only chance to find the third Clue seems to lie with their unreliable uncle, Alistair Oh. Will they be foolish enough to make an alliance? With a Clue on the line, Amy and Dan might not have a choice. But in the Cahill family, trusting your relatives can get you killed.

Beyond the Grave

Bestselling author Jude Watson takes Amy and Dan on a thrill-packed ride for the 4th installment of The 39 Clues series.Betrayed by their cousins, abandoned by their uncle, and with only the slimmest hint to guide them, fourteen-year old Amy Cahill and her younger brother, Dan, rush off to Egypt on the hunt for 39 Clues that lead to a source of unimaginable power. But when they arrive, Amy and Dan get something completely unexpected - a message from their dead grandmother, Grace. Did Grace set out to help the two orphans . . . ore are Amy and Dan heading for the most devastating betrayal of them all?

In Too Deep

A hint from their parents' past puts Amy and Dan on the trail of secrets their grandmother Grace would NEVER have wanted them to know. Awful memories begin to crowd in on Amy, just as her enemies circle closer. How far would she go to protect Dan? How much of a Cahill is she prepared to be? Perhaps Grace was right--some secrets are better left buried.

Into the Gauntlet

Encyclopedia Brown and the Case of the Dead Eagles

In each book, fifth-grade detective "Encyclopedia" Leroy Brown solves ten mysteries. Solutions are found in the back of the book, challenging readers to practice their own skills as sleuths (and critical thinkers).

Who Was Dr. Seuss?

Highlights the life and accomplishments of the children's author and illustrator Theodor Geisel, better known as Dr. Seuss.

Who Was Genghis Khan?

Named Temujin at birth by his nomadic family in early Mongolia, the great Genghis Khan used his skill and cunning to create the Mongol Empire and conquer almost the entire continent of Asia. As ruler of the largest empire in human history, he was as respected as he was feared. Learn more about the man and the legend in Who Was Genghis Khan?

The Invisible Island

While picnicking on Squaw Island, a group of friends find a $500 bill. But when they return the next day, the whole island has disappeared and they must figure out the mystery to this vanishing act.

The Kidnapped King

The king and queen of Socotra have been kidnapped! For his protection, the prince is sent to Green Lawn to hide out with Dink's family. Can the three sleuths catch the kidnappers and unravel this royal mystery?

Night of the Ninth Dragon (Original MTH #55, Merlin Mission #27)

Cam Jansen and the Green School Mystery

On Green Day, Cam and her classmates discuss ways to protect the environment, but when money collected for the school's new skylights disappears, Cam uses her photographic memory to solve the mystery.

The Battle for the Emerald Buddha ― Thailand

For fans of the award-winning SECRET AGENT JACK STALWART comes a must-read new chapter book series! Now Jack teams up with his older brother, Max, to solve new international mysteries, using their special training as secret agents. Temporarily retired from the GPF-Global Protection Force-and on family vacation, Jack Stalwart and his older brother, Max, are motivated to act when a band of thieves takes the Emerald Buddha from the Grand Palace in Bangkok. Without the help of the GPF, they're on their own. They're also up against one of the smartest and wealthiest villains they've ever faced. Can Jack and Max find Thailand's most precious statue before it's too late?

Winter of the Ice Wizard (Original MTH #32, Merlin Mission #4)

Mountain Top Mystery

Marooned on a mountain, the Aldens survive a landslide and find a Native American secret.

Danger in Ancient Rome

The mysterious box that Ranger the golden retriever found in the garden transports him back to first century Rome, where he must rescue Marcus, a young servant boy, and Quintus, a volunteer gladiator, from the brutal world of the Colosseum.

The Whispering Oak

In the third book in this page-turning series, Tag, Skyla, and Blaze journey to the Whispering Oak in search of the next piece of the Ember Stone. There, they find strange creatures called grumblebees. But where is the magical stone? Thorn's dark magic continues to spread. If Tag and his friends don't find all of the pieces soon, Perodia will be destroyed!