"High above a jungle-planet float the last refuges of humanity--plant-made civilizations held together by tradition, technology, and arcane science. Here, architects are revered deeply, with humanity's survival reliant on a privileged few. If not for their abilities, the cities would plunge into the devastating earthrage storms below. Charismatic and powerful, Iravan is one such architect. His abilities are his identity, but to Ahilya, his archeologist...

Best selling author Iris Johansen collaborates with her son Roy for the first time. When her brother Connor is murdered aboard a Russian submarine being prepared for display in a U.S. museum, marine architect Hannah Bryson must figure out who killed him and why, before she meets the same fate.