The sequel to Threshold, Book Three in the Boundary series.

HELL FROZEN OVER

Madeline Fathom had miraculously landed the crippled Nebula Storm on Europa. She joined on that frozen moon of Jupiter the stranded crewmembers of the ill-fated EU vessel  Odin. The Nebula Storm's reactor was ruined in the landing, the Odin’s shuttle can’t make the trip back home, and the only vessel that could have make the journey to save them has just been destroyed by a renegade crewman, bad luck, and the remorseless forces of nature.

But Madeline, Helen Sutter, A.J. Baker and the team have one card left to play. All they have to do... is survive lethal radiation, vacuum, and ice as hard as steel while they figure out how to make  Nebula Storm fly again.

But even as they prepare to make the journey home, Europa has one more discovery waiting for them... a discovery that might be the deadliest trap in the Solar System!

Praise for previous books in this series:

“. . . fast-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

Eric Flint is the author/creator of the New York Times best-selling Ring of Fire series, the most popular alternate history series today, including the recent Times best seller, 1636: The Kremlin Games. He collaborated with Ryk E. Spoor on two previous novels in this popular space adventure series, Boundary and Threshold. Flint received his masters degree in history from UCLA and was for many years a labor union activist. He lives in East Chicago, IL, with his wife and is working on more books in the best-selling Ring of Fire series.

Ryk E. Spoor, while earning his masters degree in Pittsburgh, became a playtesting consultant and writer for the Wizards of the Coast, the leading publisher of role-playing games and related novels. He now lives in East Greenbush, NY, working as a technical proposal writer for a high-tech R&D firm, and spending his non-writer time with his wife and sons. His solo novels for Baen include Digital Knight, Grand Central Arena, and Phoenix Rising.