Death Planet: The Star Commandos Series Book 4

Sogan is too familiar with the planet Mirelle. During the War, the crews of a fighter squad from his former fleet fell victim to the world’s deadly, seasonally active fungus, and the only vessel to return almost claimed his life. Now, he must lead his unit there to destroy those derelicts before raiders can use them to wreak havoc on the ultrasystem with their weapons and even crueler destruction from the fungus impregnating the ships. They make a long, hard journey through Mirelle’s caves, encountering the dreaded fungus, and then complete their mission in a cataclysmatic attack from both air and sea only hours before the dreaded spores will be released.