Summary

In his continuing adventures, Twig, now sixteen years old, joins the crew of his father's sky pirate ship and embarks on a dangerous mission to collect the powerful stormphrax, a substance that purifies water and also prevents the city of Sanctaphrax from floating away.

In his continuing adventures, Twig, now sixteen years old, joins the crew of his father's sky pirate ship and embarks on a dangerous mission to collect the powerful stormphrax, a substance that purifies water and also prevents the city of Sanctaphrax from floating away.