The Wall and the Wing

In one vast and sparkling city, everyone can fly.

Almost everyone.

A few, nicknamed leadfeet, are sentenced by a trick of nature or fate to forever spend their lives closer to the ground. But one night, a girl named Gurl - a leadfoot, an orphan, a nobody - discovers that she can do something much better than fly.

She can become invisible.

This amazing power will help her uncover the secret mysteries of the city. But even with her newfound talent, Gurl can't seem to hide from a giant rat man ...