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 stromphrax, a substance that purifies water and also prevents the city of Sanctaphrax from floating away.

Rook Barkwater, the young librarian knight, attempts to stop Vox Verlix, the Most High Academe, in his plot to take over Edgeworld once again.

Apprenticed to the Most High Academe of Sanctaphrax, a floating city of scholars, gossip, and treachery, fourteen-year-old Quint runs increasingly dangerous errands, which eventually bring him to a place of gruesome monsters that threaten his life and those of his friends.

Quint finally begins his training at the Knights Academy, Maris adjusts to life in Undertown, and Sanctaphrax shivers in anticipation of a legendary storm, while a storm of a different kind brews between sky-scholars and earth-scholars.

"Cade Quarter is on the run - wanted for the crimes of an uncle he has never even met. With nowhere else to go, he sneaks onto the Xanth Filatine, a forbidding skyship bound for the city of Hive. But he is soon forced to abandon ship for the harsh lands of the mighty Deepwoods. Cade must build a new life amongst flesh-eating bloodoak trees, fearsome goblin tribes and monstrous lake creatures. And most mysterious of all, a strange, half-formed giant...

Hedgehog, who hibernates through the winter, wants to know what winter feels like, so he asks his friend Rabbit to save him a little bit of winter to share in the spring.

A boy, orphaned and raised in the Frozen North by reindeer herders, boards his birth parents' sled and sets its special compass to "Home," where he uncovers a plot that threatens his mermaid godmothers and other friends of his family.

When Sir Knight saves a damsel in distress, she is forced to return the favor.

In his continuing adventures, the unbound knight Free Lance--with the help of his new squire, Wormrick--tries to save a lady of the court from a disastrous marriage by defying a treacherous lord who wants him to intentionally lose a jousting tournament.