When they landed, the people of Earth were oblivious. Everyone had always expected the type of invasion they saw on tv; a large ship with hostile, human like figures. An enemy that was smart, but similar enough that the fight would feel winnable. No one expected an intelligent species could exist in a body the size of a raindrop. When the first city fell, scientists blamed an outbreak of a deadly flu virus. When ten more cities crumbled in a span of three days the world started to panic. The fight had begun and the human race was losing.