Missing Friend

Where are you? You're loved, so why did you ran away? Did you wanted this or had someone take you?
This is a story about Sonic The Hedgehog, The Fastest Thing Alive and Shadow The Hedgehog, The Ultimate Life Form. There is someone missing, who is it? Go in to the damn story to find out.
A little SonAdow, IDK if it going to be a SonAdow story, I will find out and I will tell you if it going to be.