From the Back of the Book:
The Few, the Proud, the Enlightened
The Void Engineers are hiding something. They've traded many of their ideals for guns, turned vessels of peaceful exploration into mobile defense platforms, and - most frightening to the Union - forged themselves into an organized military. They've kept the rest of the Technocracy grounded as they fight a mysterious war beyond the boundaries of Earth against adversaries too heinous to name.
As much as that's tearing the Technocratic Union apart, that's the only way it can be: only the Void Engineers can defend Consensual Reality from horrors beyond. For only they can stand before what lurks out there, hungry to return to Earth.
A World Under Siege
The world beyond Earth has changed much in fifteen years, and not just from the Dimensional Anomaly. The Engineers have been forced to adapt to a Void growing ever darker. Convention Book: Void Engineers updates Mage: the Ascension with fresh 21st century ideas of the starfaring Convention - once filled with hopeful explorers and rebellious dreamers, now scarred by their secret war.