Since the only person who really knows what happened is now a baby, I had to deliver this as a theory on the characters part. Anyhoo, Chrono Cross showed that Schala's pendent had gained some defensive time bending powers so technically the blast did hit and kill everyone as you saw before, but that was later replaced by the new timeline seen here.
P.S. For thoes wondering, that is not Masa or Mune in panel three. Rather it's their sister Doreen. Die-hard Chrono Trigger fans should be able to figure out her relevance.
I only seem to recall seeing Doreen in one place. I kind of figured she died after that. I guess not?
So which timeline does Lucca and the others remember experiencing? The one we, the readers, saw or the new one that she is explaining now?
Hmn... wait, does this mean the kid survived the blast and *then* went back to save the rest? Isn't that like surviving a nuclear blast at ground zero (or very nearly at least)?
By the way, the past variant of "rewind" is "rewound" not "rewinded".
wow, they didn't even need a dagger full of sand.
Hooray, Doreen finally has actual plot significance. Also if it's supposed to be the kids mother, it should be Queen Zeal not Schala, and last I checked she didn't give a crap about either of her children due to Lavos's manipulation.