From publisher blurb: Are your friends acting strangely? Are arachnids crawling out of your slain foes? Do you hear voices? From Khan's Press comes a book that's going to get under your skin. Alien parasites are small insect-like aberrations capable of full character development. Though small enough to squish, they seek out other creatures to crawl inside and possess. Alien Parasites: Possess other creatures, killing their minds and claiming the bodies. Unlock new evolutionary abilities as they gain Hit Dice. Progress with character levels. Are fully useable by both Players and Game Masters!