Casmeer is the only living soul left in Thermidore, high atop the mountains of Overhang. So it has been for hundreds of years. Immortal historian and chronicler, Casmeer is the self-appointed keeper of the city's remains and its crystalline inhabitants.

Finnigin is a young terranaut, whose people collect the crystal fragments from Thermidore that wash down from the mountains to use as pilot stones to guide the floating cities across the Flatlands. Finnigin is forced to leave his people on an initiation of manhood, to journey across the plains and confront the mystery of the pilot stones.

Ays is a Priest of Hands, a consoler to the dying, in the floating city of Min. His faith shaken by the words of a dying man, he undertakes a journey of his own, and leaves his flying city to face the unknown on the Flatlands. But as both Ays and Finnigin travel throughout their world, they are haunted by a mysterious figure who seems to know more about them than they do themselves. When Ays and Finnigin cross paths, they find their lives linked in ways they could not have imagined. While in Thermidore, Casmeer, the last immortal, has one last chronicle to write.

Storm Constantine is a literary fantast of outstanding power and originality. . .Calenture [is] exotic, erotic and packed with surprises. - Michael Moorcock

This is fantasy that lives and breathes. . . and leaves the reader a little wiser when the last page is turned. -Locus