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Third Life was a Hateful Man, All Poison to the Bone by QuintessenceA
Fandoms: Undertale (Video Game)
11 Dec 2022
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Summary
To Gaster's surprise, the experimental skeleton that he created deep within his Lab was not the only one of his kind. In fact, he was one of very, very, very, very many, spread across a staggering amount of different realities. Identifying other universes was one thing, but interacting with them..? That was the trouble.
In comes Gaster's latest experiment- using a high tech machine and careful monitoring, he sends S01's Soul out into the multiverse to take over the body of one of these random, identical versions to gather data on these foreign realms. As they borrow S01's body in return, Gaster gets the opportunity to... chat. There's so much to learn.
