Fake mustache : or, how Jodie O'Rodeo and her wonder horse (and some nerdy guy) saved the U.S. Presidential election from a mad genius criminal mastermind / by Tom Angleberger; illustrated by Jen Wang. 2013 Edgar Award Nominee. Lenny Flem Jr. is the only one standing between his evil-genius best friend, Casper, and world domination as Casper uses a spectacularly convincing fake mustache and the ability to hypnotize to rob banks, amass a vast fortune, and run for president.
"The Magic Tree House: Season of the Sandstorms" by Mary Pope Osborne - Jack and Annie travel back in time to a desert in the Middle East at the behest of Merlin who has given them a rhyme to help on their mission. There they meet a Bedouin tribe and learn about the way that they live.