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160 pages first pub 1997 (editions)

nonfiction middle grade science funny informative lighthearted slow-paced
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189 pages first pub 1997 (editions)

nonfiction middle grade science funny informative lighthearted slow-paced

159 pages first pub 1997 (editions)

nonfiction middle grade science funny informative lighthearted slow-paced

159 pages first pub 1997 (editions)

nonfiction middle grade science funny informative lighthearted slow-paced