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255 pp.
| HarperCollins/Harper |
January, 2015 |
TradeISBN 978-0-06-223632-6$16.99
(4)
4-6Genius Files series.
This last leg of twins Coke and Pepsi's road trip takes them from the Hoover Dam to the Golden Gate Bridge before they finally convince their hapless parents that they're endangered by the sinister Dr. Herman Warsaw. The humor can be grating, but the mystery-adventure's stimulating format includes now-familiar series of codes, ciphers, and hidden clues combined with photos and Google maps links.