Stonekeeper author-Oliver Jeffers and their crew of resistance

and their crew of resistance fighters charter an airship and set off in search of the lost city of Cielis

Streets that were once busy are deserted

and he's still fascinated by witchery

and cultural misunderstandings throws these two bumbling scholars into the middle of an international crisis

all the girls are raised to be witches

Stonekeeper author-Oliver Jeffers and their crew of resistanceAfter the tragic death of their father, Emily and Navin move with their mother to the home of her deceased great grandfather, but the strange house proves to be dangerous. Before long, a sinister creature lures the kids' mom through a door in the basement. Em and Navin, desperate not to lose her, follow her into an underground world inhabited by demons, robots, and talking animals. Eventually, they enlist the help of a small mechanical rabbit named