Psyhitale.
A portal stood opened as Nightmare and his gang hurry to climb through. Just as he was about to step through, Killer sensed something. He wasn't quite sure what he was sensing, but decided to follow them anyway. He decided losing his life to the hands of Nightmare later wasn't his worry right now. He climbed through a pile of rubble to find... a baby? It was a human baby, but something felt... off, this child was different, I mean, it's a survivor of destruction, not even powerful monsters survived.
Killer hesitated before picking up the infant, a slight smile played at his lips at seeing the gentle face of the sleeping child. He contemplated on what he wanted to do. Bring this child with him and face some kind of punishment, or leave this possibly powerful child to die along with it's collapsing au. He looked around, and then towards the portal where the guys were waiting for him. He seemingly made his mind up as he held the child close to his chest and made his way to the portal. Dust looked at him, a confused look in his eyes, "What the fuck are you doing with that thing?" he questioned Killer. Killer explained his suspicions on the child to him and Horror, who kept telling him to kill it. "It won't survive with us, even if we don't kill it, Boss definitely will." they tell him. Killer's only reaction was a shrug. They climbed through the portal, causing it to close.
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(discontinued) A baby in Nightmare's castle? || an undertale au fanfic
Fanfic!swearing • Killer!sans x child!reader • Killer finds an abandoned baby in a collapsing au. Despite the pressure of the rest of the gang, he chose to take the child home, sensing something special about them. • I may go into more detail of psyhital...