The world of Rohana exists beneath a barrier of luminous crosses that has enclosed humanity in a dome. Within it, people bow to Rohai and his Church of Harmony, who have divided the world into city dwellers who harness crystal technology and villagers who reject it.

Haran Baratti fled his homeland with his infant son, Heron, and found refuge in a remote village in a neighboring country. But the sanctuary they seek does not last, and events revolving around Haran's past leave Heron alone, forcing him to return to his father's homeland. But to get there, he can only do it by obtaining a special passport, which will allow him to travel to different kingdoms.

Having been raised in a different culture, Heron will have to navigate this new world. There he'll meet allies and face dangerous foes, many of whom have secrets; some of them may reshape the very foundations of the Rohana Federation. Will Heron realize that maybe some of those secrets should have stayed buried?