Volume Two of the Ontogeny series. 

A time of unprecedented crisis has come. During a mission to the edge of the known world, Brigadier Weyland James discovered that humanity faces a threat so terrible that the sane mind can barely conceive it. Failure to meet this threat would mean the end of human civilisation, mankind thrown back to a life of wandering savagery, easy prey for the true masters of the planet who see humans as mere animals, theirs to use and exploit as they see fit.
Hope exists, if all mankind can unite, putting aside their petty differences for the greater good, but the truth is so unbelievable that the Brigadier faces an almost impossible task in convincing the leaders of the human world. His task is made even harder by the fact that several governments have been infiltrated by agents of the enemy, who are using their influence to sow seeds of war and chaos.
The Brigadier is not mankind's only hope, though. In Helberion, a small group of scientists, struggling to make a major scientific breakthrough, is being hampered by assassination and sabotage. Is this the work of the enemy of mankind? King Leothan hopes it is, because it would mean that the enemy fears this new science, that it could be used to create a powerful weapon against them. A weapon that could be the Saviour of Mankind. The Electric Messiah...

This is the sequel to Ontogeny. If you haven't read that book yet you must read it before you read this book.