Gambler mathematician sent east for father
In a 1924 Warsaw still ruled by the Tsar, the indebted gambler and logician Benedykt Gierosławski is recruited by the Ministry of Winter and sent on the Trans-Siberian Express to find his exiled father, Filip, who is rumored to be able to speak with the lute, the frozen entities spreading from the Tunguska impact. Rival factions court and threaten him along the way, since whoever controls the father's link to the Ice may control whether history stays frozen or thaws.
