Board Thread:General Discussion/@comment-28974149-20180305043309/@comment-34645353-20180405214741

Undertale2Excalibur wrote: Acoording to my research, Dr W.D. Gaster has 2 sons ,the elder is Sans, and the younger is papyrus. I can barely think of how Gaster died/disappear.

1. He fell from the tower in the CORE and shredded in do million, trillion pieces of dust.

2. He sucked into a time machine and started his 'experment'. There is no evidence that Sans and Papyrus are his sons. Saying they are his sons doesn't require research, since that is just a theory with almost all evidence only being speculation.

He most likely fell into the CORE somehow, whether it was suicide, accidental, or something else. He fell "into his creation", according to the Gaster followers, and we know he created the CORE. Although it is possible there are other creations, I think he did fall in the CORE.