The WondLa is an object discovered by Eva Nine at the sealed entrance to Sanctuary 572. It was later found
to be the remains of the cover of The Wonderful Wizard of Oz, but its damaged condition allowed for only the words "Wond" and "La" to be visible.
The WondLa was discovered by Eva Eight somewhere in the Ancient Ruins. Eight later returned the Sanctuary 573, hoping to live with Eva Nine, but Muthr did not allow them to stay. Eight left the WondLa by the door to the abandoned sibling Sanctuary, as proof to the then-infant Eva Nine that humans did exist on Orbona. Eva Nine discovered it some years later, and recognized its significance. It came to symbolize Eva's hope to find other humans, as well as the world beyond the Sanctuary.