This is just something I threw together.

It's not necessarily a book trailer, but you all know I love making these, so I couldn't NOT make one. ;)

But I do feel it definitely captures the dynamic of the trio.

And no, there will not be a love triangle in this story... It's a serafina x dean winchester fic with lots of serafina x sammy friendship 

https://youtu.be/1TIElVHFGCo