The Human Planets Collective sent young Ambassador Kaj Deder to the former colony planet Ostakis to establish relations. But in the twenty-five hundred years since Earth lost contact with Ostakis, the people of that colony have dramatically changed. Kaj is tasked with finding the reason for these changes while he forges trade links between the HPC and Ostakis. Without trade with the HPC, the dwindling resources of Ostakis will ultimately end human life on the planet. But his mission faces a huge obstacle in the form of Most Reverend Thyenn Sharr, the head of the Faith Progressive Church, who sees the arrival of Kaj as the beginning of the end of the Church. Kaj's powerful attraction to Trademaster Klath's son, Arlan does not smooth relations. Arlan Klath, the son of the Trademaster of Ostakis, bears the secret that the pious people of his planet want to hide from the homeworld and the HPC. The Curse of the Unspoken, wrought through the unspeakable acts of the First Colonists, afflicts all Ostakians, but some more strongly than others. Arlan is totally Cursed, considered born sinful and he lives without legal rights or property. He is scrutinized by Sharr who is enraged that Arlan's father defiantly refuses to submit Arlan to a cruel act to "redeem" Arlan's soul. The stakes increase when Arlan and Kaj form a relationship that Thyenn Sharr considers ample justification to usurp the Trademaster position through the power of his Church.