Ambition runs strongly in the Kressind family: Trassan is building a mighty ship to navigate an uncrossed ocean; Rel is banished to a vital frontier; Garten balances responsibility with family loyalty; Katriona is determined to carve herself a place in a world of men; Guis struggles to contain the energies of his soul; Aarin dabbles in forbidden sorcery.

The world is in turmoil. New money brings new power, and the old social order crumbles; tired gods walk industrial streets. Deep in the polar south a city of ice stands awaiting rediscovery, offering the secrets of the ancients. And in the sky, the closest approach of the Twin in 4,000 years draws near. A terror from the ancient past awakens...

The Gates of the World, Volume One collects The Iron Ship and The City of Ice.