When astronomer Stephanie Bronson uncovers a massive alien vessel named Fenrir racing toward the Sun, she must lead a desperate mission to rescue its crew before a catastrophic failure dooms them both to fiery destruction. It was just a dot of light . . .. . . a dot of light that appeared out of nowhere. Stephanie Bronson thought she might have found a distant supernova. Instead, what she’d found was something more than a thousand miles across, moving towards the Sun at almost a third the speed of light from the constellation of Lupus, the Wolf. Even more frightening, the object—called Fenrir, after the Norse Wolf of the World’s End—was slowing down. It was not a comet or even a rogue planet. It was an alien vessel. And despite the increasingly detailed and insistent messages of greeting from Earth, it showed no sign of responding. As the world braced itself for the arrival of the immense, frighteningly silent alien visitor, Stephanie held hope that they still might communicate with Fenrir—until something happened that no one had imagined: Fenrir flared and its drive died, leaving the huge ship careening out of control to a fiery death inside the orbit of Venus. There was—just possibly—a chance for Earth to act—to rescue the now-shipwrecked “Fens.” But even Stephanie—or those trying to stop her and the rescue ship Carpathia—could not imagine that not merely the fate of the aliens, but that of Earth itself, would be decided by Fenrir.

NEW ENTRY IN THE BOUNDARY SERIES BY ERIC FLINT & RYK E. SPOOR Surviving crash-landings and monsters and island-eaters was only the beginning! The Kimei family and the second group of castaways, led by Sergeant Campbell, had finally joined forces after both had been forced to land on the bizarre planet Lincoln, whose "continents" were huge floating coral colonies, inhabited by even stranger lifeforms. They had survived crash-landings and venom-filled bites and disease, their own despair, and even the destruction — and consumption! — of one of their floating islands, and had learned to live, even prosper, in their strange new home. Far away, Lieutenat Susan Fisher slowly pieces together the mystery of what happened to the starship Outward Initiative . . . and begins to believe that — just possibly — some of the survivors might have escaped to a mysteriously unsuspected star system. But even her preparations and the resourcefulness of the castaways may not be enough . . . for Lincoln has far worse in store. Praise for previous books in this series: “[F]ast-paced sci-fi espionage thriller . . . light in tone and hard on science . . .” — Publishers Weekly  on  Boundary “The whole crew from Flint and Spoor's  Boundary are back. . . . Tensions run high throughout the Ceres mission . . . a fine choice for any collection.” — Publishers Weekly  on  Threshold “[P]aleontology, engineering, and space flight, puzzles in linguistics, biology, physics, and evolution further the story, as well as wacky humor, academic rivalries, and even some sweet romances.” — School Library Journal  on  Boundary **