The planet of Kallithea, Spica III, is starting its punishing five year winter. The planet is slowly closing down, its inhabitants retreating far underground to await the arrival of summer. To this inhospitable ice-bound world comes Matt Hendrick, searching for his ex-wife and his daughter, along with his old friend Ed Miller seeking to arrest the installation artist Katerina Nordstrom on a charge of murder. What they find on Spica III is a cult whose charismatic leader demands nothing less from his adherents than the ultimate sacrifice: suicide. Sacrifice on Spica III combines expert story-telling, stunning set pieces, and in Matt Hendrick a central character haunted by memories of his painful past . . .