The bats spared Erion and left to hang on the nearby branch. She looked around to see David approach Asgore while Mettaton spoke to the presence that Skylar couldn't sense, Sans was standing by, just watching what was happening, and one bat sent a razor blade of wind from its wings at the Temmie. 

The razor gust of wind hit the Temmie. Skylar gasped at the sight of the Temmie crumbling to dust. She knew that the Temmie was dead, considering the stories Frisk told her about the Underground and their friends. She felt sick. She just saw someone die, and she couldn't prevent it. Before she even realized what was happening, her vision was obscured by a bright light coming from her hand.

[center]*~*~*RETCON ACTIVATED*~*~*[/center]

As soon as the light faded, Skylar found herself running through town towards the forest again. Everything happened as before, but this time, Skylar didn't let herself get hurt by Mettaton's attack, and she managed to save the Temmie's life. After she found herself in some pain from taking the attack for the Temmie, she looked back and watched the Temmie run away. After that, the fact that she had just gone back in the time and changed what happened hit her like a speeding truck. She looked at her hand in shock and she thought "[i]Wh-What...? How did I...do that?[/i]"

Still in a daze, Skylar looked up to see Sans staring at her...
She snapped out of her daze when a familiar voice called "[color=orange]SANS! SKYLAR! EVERYONE! THE GREAT PAPYRUS IS HERE![/color]" 
Skylar looked up to see Papyrus with Flowey in his hands. She greeted trying to act normal, and ignore the demented weed, "Oh, hey Pap," 
Papyrus asked his friends innocently, "[color=orange]I was told Frisk is here! So...uh...why do I not see them around here...?[/color]"
Skylar answered "We got a little caught up in meeting each other here..." 

Remembering the circumstances, she cleared her throat, and she asked Erion, "Can you go and see if you can help Mettaton? I think you may have an easier time following Alphys's directions. I'll talk to the bats here,"