Polesotechnic League Books in Order

Shipwrecked on Diomedes, Nicholas van Rijn and his companions have only weeks of edible supplies. Their route to safety depends on winged aliens divided by war, forcing the merchant to negotiate before the humans starve.

Three adventures follow merchant Nicholas van Rijn as alien encounters threaten lives and profits. Whether stranded among unfamiliar beings or investigating an uprising, he must understand how other species think before human assumptions lead to disaster.

These three adventures follow trader David Falkayn as he encounters unfamiliar civilizations beyond humanity's settled worlds. Alien customs, religious prohibitions, and commercial rivalries demand careful thinking from a young merchant trying to solve problems without starting wars.

David Falkayn discovers a wandering planet with enormous industrial potential, attracting competitors eager to seize it. When he disappears, Nicholas van Rijn and Falkayn's alien companions must unravel the struggle over a world that could transform interstellar trade.

Humans and winged Ythrians have built a shared culture on Avalon, caught between two rival interstellar powers. As Terra and Ythri seek control of the strategically valuable planet, its inhabitants must defend a society neither empire fully understands.

The surviving core of a supernova-struck planet offers uniquely valuable metals, making Mirkheim the focus of competing claims. Trader David Falkayn must confront an alien power and seek an agreement before the resource dispute becomes an interstellar war.

Twelve adventures chronicle humanity's expansion into an inhabited galaxy and its encounters with other species. Framed as records preserved by the Ythrians, the stories follow the rise and decline of interstellar trade and the emergence of empire.