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Invisible Inc. (Volume 1, Mysteries 1-4)
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Amazon.com Product Description (ISBN 0760756090, Paperback)Includes: #1 The Schoolyard Mystery #2 The Mystery of the Missing Dog #3 The Snack Attack Mystery #4 The Creepy Computer Mystery
(retrieved from Amazon Thu, 12 Mar 2015 18:19:12 -0400)
The schoolyard mystery -- The mystery of the missing dog -- The snack attack mystery --The creepy computer mystery.
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