User blog comment:SayuriDarling/The Sword of Summer Official Discussion/@comment-10353303-20150924002458

I haven't read the first two chapters and know absolutely nothing about this series (I may be repeating already known info), but given what limited amount of Norse mythology, I'm going to guess.

Unless I'm mistaken, the prophecy goes that Loki's three children by the giantess (forgot their names and whether or not it was three) would awaken sometime in the future and literally bring the End of Days, Ragnarok. I the aforementioned "End of Days" will be the central conflict in this series and our dear friend, Herr Magnus Chase will have to stop it somehow.