[Boundary 03] • Portal-eARC

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_