A 11 year old and a 6 year old. 2 girls travelling by balloon to give a treasure to royalty-across the water. Limited by food and water, these two brave females have 7 days to meet their required goal or they'll be banished.
This novel follows Hunter Kel, the brother of cyclops (who has his own novel called "cyclops: gangs of the wasteland"). He ends up in a parallel universe nicknamed the bloody royalty and befriends the king.