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The Case of the Barfy Birthday

Paperback
$6.95
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Did Zoe really poison her twin sister Chloe? What’s the best way to rescue a super-sized pig trapped in a deep, deep hole? And how can you stop a chilly ghost from wrecking a tree-house sleepover? Fifth-grade supersleuths (and science whizzes) Doyle and Fossey are about to find out—and young readers will love learning the solutions!