From School Library Journal
Gr 5-9-Fans of the series will be clamoring for this action-packed installment, which begins with an explosion and seldom slows down from there. Will, Chester, and Elliott continue to fight the Styx, a malevolent subterranean race that plots the destruction of the "Topsoilers." The Styx have instituted "the Phase," in which they will use humans as incubators for eggs-destroying the humans involved and unleashing powerful killers on the rest of the population. Uncertainty plagues Will's crew as loyalties may be shifting. Newcomers will need to start at the beginning of the series, but fans will enjoy this latest helping of excitement, action, and gore.-Hayden Bass, Seattle Public Library, WAα(c) Copyright 2011. Library Journals LLC, a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.
They got CLOSER!
"Fans are going to have a hard time putting it down. There is a lot of action; lively dialogue; diabolical villains and feisty teens; clever cat-like companion hunters; things that blow up; torture and mind-manipulation; family and friends in danger; and trust and betrayal. A great science-fiction adventure series for boys, and girls will enjoy it as well." -- VOYA*
"Gordon and Williams move plotlines around like two generals directing a simulated battle. The authors have created quite a world." -- Booklist
They fell for FREEFALL!
Gordon and Williams are one of the world's hottest writing teams.”
St. Paul Pioneer Press
The perfect adventure in which to completely bury oneself.”
Propelled by chases, attacks, explosions, cunning deceptions, and acts of heroism and stupid bravado.”
School Library Journal
They dug DEEPER!
An amazing world . . . with astonishing twists and surprises hiding around every darkened corner.”
What a story. Seriously awesome. True thrills and adventure.”
They dug TUNNELS!
*Compelling.”Booklist, starred review
Thrilling.”The Columbus Dispatch