The knights of the Lightraider Order disappeared nearly two generations past. Now, the Keledan have withdrawn behind their barriers, and the Dragon Lands of bordering Tanelethar are overrun with dark oppression. The people are living in disobedience to the Rescuer who freed them long ago. A shepherd boy, Connor Enarian, and four young initiates rekindle the fires of the Lightraider Order in the hope of striking out across the mountains into Tanelethar to destroy a portal and stop an impending invasion.

12-year-old Aidan Errolson, comes from a long line of adventurers. His grandparents were among the first settlers of Corenwald's Eastern Frontier. His father had been one of the kingdom's greatest warriors. Aidan, on the other hand, lives the quiet, comfortable life, of a nobleman's son. He never has any real adventures, and that, he believes, is the one great injustice of his otherwise happy life. All that will change the day he first hears the bark of the bog owl, and meets Dobro Turtlebane.

In a world where humanity lives in the sky to escape a deadly mist below, Cass’s only goal is survival. That is, until she finds a job on the airship Daedalus as a diver. Now she explores ruined cities, looking for treasure and people’s lost heirlooms until a young man hires her to find the impossible: a way to eradicate the Mist.

In the glacial nation of Norgard, Jolan the Dream Teller serves every seeker, whether peasant or high lord. Though she loves using her gift, she struggles to navigate the corrupt and dangerous court and the jealousies of the Guildagard. When an old man’s nightmare imparts a dire warning, Jolan realizes her entire nation is in danger. But before she can sound the alarm, she is betrayed by the guilds and sold into slavery in a rival kingdom far to the south.

When teenagers Jay and Lila Cooper and their archaeologist father travel to Nepur, an uninviting land of deserts and danger, they must search to uncover the truth behind an ancient legend. Locals claim that inside a dark cavern called the Dragon's Throat is a forbidden Door that brings certain death to anyone who tries to open it. Armed with the knowledge that God is more powerful than any legend or curse, Jay and Lila plunge down into the Dragon's Throat, determined to find out what awaits them on the other side of the Door.