A new planet. A new battle. Same war.
After barely surviving his last tour on Mars, Master Sergeant Michael Venn finds himself back on earth in enforced isolation. Through a dangerous series of operations he returns to Mars to further his investigation into the Drifters--ancient artifacts suddenly reawakened on the red planet.
But another front in the war leads his team to make the difficult journey to Saturn's moon, Titan. Here, in the cauldron of war, hides new truths about the Drifters, the origin of life in our solar system and the plans of the supposedly benevolent Gurus, who...

The conclusion to an epic interstellar trilogy of war from master of science fiction, Greg Bear.
Marooned beneath the icy, waxy crust of Saturn's moon, Titan, Skyrine Michael Venn and his comrades face double danger from Earth and from the Antagonists, both intent on wiping out their growing awareness of what the helpful alien Gurus are really doing in our solar system.

Haunted by their dead and by the ancient archives of our Bug ancestors, the former combatants must now team up with their enemies, forget their indoctrination and their training, and journey far beyond...