In the plot of "The Search for WondLa," Evangelista, Muthr, Rovender, and Otto cross the desert to discover the remains of an ancient human city buried under the sands, then Besteel soon arrives and attacks, severely damaging Muthr.
The Search for WondLa is a children's science fiction fantasy novel by Tony DiTerlizzi published in 2010. She also discovers many ancient human artifacts and learns of a ruined human civilization beyond a dangerous desert. Eva, Muthr, Rovender, and Otto cross the desert to discover the remains of an ancient human city buried under the sands. Besteel soon arrives and attacks, severely damaging Muthr. 
