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 Lucian trap. But the bait might just be irresistible . . . what will Amy and Dan risk to find out what really happened on the night their parents died? Praise for Geronimo Stilton Cavemice #1: The Stone of Fire : "[A]n adventure Stilton readers will enjoy...the right combination of familiarity and newness to satisfy Stilton fans." -- Kirkus Reviews "Fans of the other Geronimo Stilton books will definitely embrace the over-the-top silliness in this new spin-off." -- Booklist Praise for Geronimo Stilton books: "Lightning pace and full-color design will hook kids in a flash." -- Publishers Weekly Patrick Carman is the bestselling author of numerous series for young readers, including The Land of Elyon, Elliot's Park, Skeleton Creek, Atherton, Trackers, Dark Eden, and 3:15. He got his start as a storyteller weaving bedtime tales for his two daughters. He lives in Walla Walla, Washington, with his family. Used Book in Good Condition