Who Is Behind Nemesis?

"So, that means? Nemesis isn't the only one we have to worry about." says Luke

Sighing Viola says "I'm afraid so. Cause I don't think that Nemesis would help Alp, cause Alp is not powerful, rather he must be guided by someone or something who must have promised him the rule, but who could it be who wants to put Ellis in Neverland and not want the rule? It just doesn't make any sense."

"Well whatever, and whoever, we have to put an end to it, that's all I know." says Fallon 

Lucifer says "Boys, night is falling in, why don't you stay over. Plus Ellis, it will be better for Jane and Sandra, if you stay near as possible… ."

"Why?" asks Ellis confused