Multiverse : an infinity of worlds, a multitude of beings, rather different from one to another. But when two of them, among the most importants of the multiverse, see their worlds collide, it's the beginning of a dangerous journey, full of emotions and revelations, where one's past leads to the other's. Then, no universe is spared by this conflict against a mutual and unknown threat, coming from the past of this mysterious being with plenty of faces. My ultimate fanfiction, with each and every one of my favorite universes. I don't own any right on any license mentioned in this, but the plot is mine, and I could accept inspiration(with me agreeing), not copy. But I take every constructive comment on how I could improve. Also, this is traducted from French, by myself. level is good, but don't be surprised if there are faults.