User blog comment:GotMilk5101520/Silver Backstory & Tartarus and the Tower of Heaven/@comment-24066070-20140603140216/@comment-7418318-20140603165323

I'm can't fully wrap my head around your entire Silver theory (I'll try again after a good night's sleep), but if he somehow turned out to be the Strausses father, that'd be one massively surprising plot twist, which can never hurt. Few things as boring as a completely predictable story.

If he was already infused with the Demon Factor when he begetted Mirajane, it would also explain how she was able to just instinctively take-over a Demon back in her hometown.

It'd also satisfy the father and son we got in the title of the part. It'd also make a nice contrast how Silver has a scar above his left eye and Elfman has a scar beneath his right eye.