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266 pp.
| Scholastic |
October, 2013 |
TradeISBN 978-0-545-52137-6$12.99
(4)
4-639 Clues: Unstoppable series.
Six months after sixteen-year-old Amy and thirteen-year-old Dan defeated the Vespers, the Cahill siblings set out on another quest to stop the serum their family has protected for centuries from wreaking havoc on the world. This first entry in a new spinoff series is formulaic, but the suspense and high stakes that 39 Clues fans love are front and center.