39 Clues and Unnatural History Crossovers
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The 39 Clues Is Unnatural History by CheezePOP38 reviews
Dan and Amy Cahill head to D.C. while on the hunt for the 39 clues, there they meet Henry, Jasper and Maggie at the Smithsonian Museum Institute.
Rated: K+ - English - Adventure - Chapters: 2 - Words: 3,514 - Reviews: 15 - Favs: 14 - Follows: 9 - Updated: 8/2/2010 - Published: 7/16/2010