The highly anticipated Book Five of the #1 bestselling The 39 Clues series. 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 about the murder of the last Russian royal family. All too soon, the treasure hunt starts to smell like a...

"Leo has explored the zany, wonderful Whippet Hotel from basement to top floor, with trains, flying goats, and mazes (among other things) in between. But even Leo doesn't know every secret of the Whippet - and when he discovers that there's more beneath the hotel than he'd thought, it doesn't take long for more adventures to unfold!"--Dust jacket.

After Atherton's three-tiered world collapses, ending the geographical division of the social classes, Edgar, Samuel, and Isabel try to restore the flow of water and uncover the world's mysterious origins in the process.

When thirteen-year-old Alexa embarks on a mysterious quest, she finds her old friends Yipes the little man, Murphy the squirrel, Odessa the wolf, and Squire the hawk have been designated to help her.

Leo and Remi have gotten used to the strangeness of the Whippet Hotel, but when the entire top floor is hoisted into the sky and transported to the field of wacky inventions, they find that they must compete against a number of foes to solve a puzzle or lose their beloved hotel forever.

Captain Roland Warvold tells Alexa and Yipes about the adventures he shared with his brother Thomas in Elyon, before the wall went up and divided the world in two.

From the creator of the Land of Elyon comes a riveting adventure set in an extraordinary satellite world?created as a refuge from a dying Earth?that begins to collapse and forever change the lives of its inhabitants. Edgar, a gifted climber, is a lonely boy scaling the perilous cliffs that separate the three realms of Atherton: a humble fig grove; a mysterious highland world of untold beauty and sinister secrets; and a vast wasteland where he must...

The Crossbones have a long history of destroying people who get in their way and now Ryan and Sarah find themselves in their crosshairs.

Ten-year-old Harold, the adopted son of a food inventor, discovers that his father's latest invention, soda pop that produces the world's longest burps, also generates furry creatures known as Fizzies.

Faith Daniels and Dylan Gilmore are in love, and they have a special ability called a pulse: they can move things with their minds. They're caught in the middle of a deadly war with two other pulses: Clara and Wade Quinn, who have joined forces with Hotspur Chance, the most wanted man in the world. At the start of Quake, Faith and Dylan are holed up in a spectacular abandoned mountain lodge (once used in the film The Shining 71 years before), and...