For Khadija, the only escape from her father’s arranged

betrothal is the sky.

When she spots a rogue hot air balloon fighting against its ropes,

she leaps at the chance for adventure. Khadija soon finds an

unlikely ally in a poor glassmaker’s apprentice, Jacob.

But Jacob is a hāri, and Khadija a Ghadaean. The hāri

are oppressed and restless – their infamous terrorist group,

the Hāreef, have a new fearsome leader. And the ruling Ghadaeans

are brutal in their repression.

Soon, a deadly revolution threatens their friendship and their

world. The Hāreef use forbidden magic, summoning jinn –

wicked spirits made of fire – to enact their revenge, forcing

Jacob and Khadija to choose what kind of a world they want

to save …