From School Library Journal

Grade 4–7—Siblings Amy and Dan Cahill continue their quest for clues to the family's source of power with non-stop action and adventure that takes them to Volograd, Russia, in this episode by Patrick Carman (Scholastic, 2009). They chase down riddles left to them by "NNR" in one of the more complex books of the series. Incorporated within this story are famous landmarks centering on historical icons in Russian history, such as Rasputin. In their quest, they uncover a treasure stolen by the Nazis and the truth behind the murder of the last Russian royal family. The Madrigals play an integral role among the deceptions and espionage. David Pittu does an admirable job of narrating, giving each character a distinctive voice; listeners may find the chronic raspy quality of Dan's voice wearing by the end of the story. The exaggerated voicing of the bonus material at the end of the story is reminiscent of old time radio shows.—Tina Hudak, St. Albans School, Washington, DC
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About the Author

Patrick Carman is the author of The Land of Elyon books, which have spent over half a year on the New York Times bestseller list. He lives in Walla Walla, Washington.