Isnt Trevenant line based on Der Grobbman?
http://creepypasta.wikia.com/wiki/Der_Gro%C3%9Fmann"My child, my Lars… he is gone. Taken, from his bed. The only thing that we found was a scrap of black clothing. It feels like cotton, but it is softer… thicker.
Lars came into my bedroom yesterday, screaming at the top of his lungs that "The angel is outside!" I asked him what he was talking about, and he told me some nonsense fairy story about Der Großmann. He said he went into the groves by our village and found one of my cows dead, hanging from a tree.
I thought nothing of it at first…But now, he is gone. We must find Lars, and my family must leave before we are killed. I am sorry my son…I should have listened. May God forgive me."