User blog comment:GotMilk5101520/Silver Backstory & Tartarus and the Tower of Heaven/@comment-173.215.2.142-20140605015716/@comment-7418318-20140605080936

For the first part of your argument:

In the manga Deliora only raised it's arm and immediately fell apart. It didn't have time to recognize Gray. And even if there was time, it just woke up from being frozen for 10 years, woke up in another place than it was frozen at and was at the cusp of death.

And to top it off, it was frozen in the middle of a fight.

For me that sounds like plenty of reason for it to be so confused that it'd just lash out at the nearest Human, which just happened to be Natsu.

But on the other part I have to agree. Deliora destroyed cities before and after Gray's hometown. Silver wouldn't have had any reason to do that if they were the same... Unless there was another such Demon who looked the same and who was used to put blame on Silver to get him to leave the Humans and rejoin Tartaros... but that'd be too much of a stretch I think.

But what does Lullaby have to do with all this? For Lullaby we already have a quite complete backstory, that leaves little room for speculation.