Loki has come to earth to take it over. The only people that stand in his way are the Avengers, D.E.O. Agents, his brother Thor and Supergirl. What if Loki knew who Supergirl is? What if Loki and Thor knew about Krypton and meet Kara in the past? What if friends from the past come out to help save the world? * Characters don't belong to me. They belong to the writers of Supergirl, Flash, Arrow, and the creators of Marvel: Avengers. The plot is mine* I hope you like my story. This will be a 4 part book series.