Description The Newbery Medal-winning author of The Tale of Despereaux and the award-winning author of the #1 New York Times best-seller, Someday, present the adventures of two precocious girls who don bright socks and rollers skates for an imaginative trip to the Andes. Illustrated by the creator of the SLJ Best Book of the Year, Let's Do Nothing! 2011 Theodor Seuss Geisel Award winner.