The Vashta Nerada, literally shadows that melt the flesh, are a minor but incredibly popular antagonist from Doctor Who, acting as the main antagonist of Silence in the Library/Forest of the Dead.
There are roughly one-sh*t billion tropes so PLEASE look through them before adding one. Otherwise add what you like. ADDITION: PLEASE read through the trope description provided before submitting something. It's not a huge deal but too often people submit characters that don't fit just because they misinterpreted the title...
