Embryonic Anomaly

Fetus removed and slaughtered, as she sleeps replaced by embryonic
 anomaly, bred to kill when time comes (x2)
 disguised life among the civilization, isolation spawns hate (x2)
 lashing out to begin widespread slaughter, planted alien now executes,
 unstoppable force (x2)
 helpless humans cannot defeat it, the leader of it's dominant anti
 empyrean race claiming lives with devastating vigor, putrid stench of
 death rises through the air, havoc, a massacre,
 extermination in it's purest form, (x2)
 genocide of the soon to be forgotten swine of earth,
 feeding on their carcasses to fuel our killing rampage
 fetus removed and slaughtered as she sleeps replaced by embryonic
 anomaly bred to kill when time comes (x2)