Masterpiece Robot

When Laura-a.k.a. Masterpiece Robot-heads into the backyard with her little sister Molly-a.k.a. Sidekick-her active imagination places them instead on patrol around the perimeter of a dystopian city, guarding against super villains. Then older sister Amber-a.k.a. Valerie Knick-Knack-throws handfuls of fallen leaves at them, unknowingly initiating a battle for the ages.  
The transitions back and forth from suburbia to dystopia in this story within a story are deftly rendered with contrasting palettes. The rollicking interactions of the sibling heroes and villains make Masterpiece Robot pure fun to read.
Lexile Level 900
Fountas and Pinnell Level V