For a second I thought it was the grandfather in the second panel and that everyone else was gone and only grandfather was alive. Then I saw the graveyard.
I thought everyone disappeared and the guy from the first picture was the only person left. The speech bubble also seemed to come from him just behind the horizon
Weird that the text was re-written, I wonder if the comic was somehow translated and translated back to English?
I dunno who has the time to do this directly on a webcomic but I do love translating things to different languages and back and forth until it's a garbled mess.