An alien is made of metal components,
  Held together with meat tendons, white and wet.

  It makes a noise that no one has ever heard before,
  A thin soapy whistle under an elongated clang.

  There is only one alien, and it can’t move quite right, only left.
  It drips and drags out an oval, eroding the slip silt slate below.
  It bends - and there is a pop, a whine, and a dark damp wind.