The Construction: Worldsend Garrison #4

The Emperor couldn’t keep on turning a blind eye on the massacre happening in the Karabia Peninsula. Under the commandment of Colonel Laval, an entire regiment of the Imperial Army is ready to defend this lost stretch of beach, where there is nothing but sand and rocks.
They soon realize that the invader is not the one they expected, and proves to be a bigger threat than they thought…
If there is no obvious attacking force to fight, how can they win the battle?
Will a fort be strong enough to protect the soldiers against this invisible threat?
Could it be that the wild rumors are true?

Ficção científica