-Beware the Gravity Bug SEALED off from the crumbling civilization outside, the residents of the FURC may be safe from external threats, but their isolation only speeds the spread of a dangerous new infection, even as an upcoming election exposes divisions among them. And the fourteen square mile compound may not be big enough to prevent the pressure from building into violent upheaval. Illness lays low Security Chief Anthony Nelson when he's needed the most-as the crisis grows critical, will he jump back into the fray before he's fully recovered? Lt. Katherine Miles has her own issues, but with Tony out of action, dealing with everyone else's problems is distracting her from the real danger. Caroline Sanderson runs in the election hoping to keep the community from falling apart, but she's unprepared for what her rivals will do to win. Meanwhile, David Belue helps Dr. Amita Harker investigate the virus sweeping the FURC. Will the escalating epidemic eliminate everyone-or will they destroy themselves first?