Toriel wasn't sure just how she should react. Obviously, they had been caught in the act of doing something certainly incorrect, so she was preparing to defend herself against the newcomer. But at the same time, Sans seemed to know her, since he was calling her by name. Though, to be honest, he seemed to know everyone in the Underground. He had his hands in his pockets and didn't look worried. She couldn't see his eyes, so she couldn't be sure, but there didn't appear to be a danger.

Alphys blinked two or three times from behind her huge round glasses, raised a hand to her lips, shaking her head, and started jumping on the same spot with a look that one couldn't decide if it was panic or excitement, maybe both. "Y-y-y-y-you two?!... H-how? Why-y?... Oh my gosh, I didn't... wasn't expecting... Maybe I should've but... O-o-oh my god, what do I do, what do I do!" She started mechanically scratching the scales at the back of her head, which seemed to amuse the short skeleton quite a lot.

"Sans, who is she?" Toriel asked silently.

Not silently enough, though, for Alphys heard her and managed to get a hold of herself. Her hands sprung away from her neck and crossed on her stomach as a nervous smiled tried to form on her lips. She looked like a child caught doing something wrong, even though they were the ones who came in without permission. "I'm the royal scientist, Alphys! Pleased to meet you Misses... uh... Misses."

"Oh? Oh! Uh..." Toriel glanced at Sans who still didn't seem worried and chose to trust him. However, she didn't remove the cape shadowing her face. "Me too, Alphys. Are you a friend of Sans's?"

"Uh, i-it's complicated." she stuttered. "Let's just say the friend of a friend." Toriel waited for her to continue but she didn't. The two women just nervously stared at each other, unsure of what they could and couldn't say.

"So, Alphys, you gonne tell us why your cameras love us that much, right now?" Sans said, completely tension-proof.

"Ah, yes, yes, sorry!" Alphys stuttered again, despite the fact they were the intruders and not the other way around. She ran to the control panel and punched a button. The screen divided itself into a mosaic of little pictures that seemed to police the entire Underground. "H-h-how should I put this... I saw you talking at the end of the ruins." She pointed a clawed finger at on of the pictures focused of the large door where Sans and Toriel used to share jokes. Toriel gasped and raised a hand to her lips but Alpphys turned to her before she could say anything. "I know about the human BUT please don't worry I promise I won't tell anyone!"

"Why wouldn't you? Aren't you the royal scientist?" Toriel questioned, cautious.

"I-I still have a conscience!" Alphys replied, almost upset. "Besides, Frisk is only a little baby, putting her in danger would be of no use to anyone!"

"Don't worry, Toriel." Sans interrupted. "If she wanted to tell Asgore or the royal guard, Frisk would already be theirs as we speak."

"That's what I'm worried about." Toriel whispered. "How can we know she wasn't involved in her disappearance?"

"What? Frisk is gone?"

Sans and Toriel turned to an Alphys genuinely surprised of the news. "I thought you were watching us with your cameras?"

"yes, but I don't set cameras inside the houses! I saw you in the street, and then I had to go to the bathroom and... O-oh my god! That's why you're here!" Alphys exclaimed, her eyes lit up by her sudden realization. She didn't wait for an answer before getting to work on the control panel, checking the pictures one by one looking for the young human. "Don't worry, with this device we'll find her! My cameras are watching all of the Underground, from the ruins door to king Asgore's castel, in New Home! Except for the inside of the houses, of course." she added. She still seemed nervous, but her smile was suddenly more sincere, wider. She was obviously very excited to play a part in rescuing the little human. Toriel and Sans closed in on the screen, slightly comforted by the presence of a new ally.

The pictures scrolled quickly on the screen, showing snowy landscapes and almost empty streets and trees and flowers and stones and waterfalls and lava rivers. But no sign of a human baby, nor of a little yellow flower. Alphys, confident at first, started to sweat. "We... We must've missed something!" She said before starting over with a new series of pictures she examined fretfully. Toriel was growing worried, and Sans was growing bored.

"I'm so sorry," Alphys sighed after a third unsuccessful research. "I really thought I could help you but... But it lookes like... It was no use..."

"There there," Toriel comforted her, feeling sorry for her miserable and contrite look. "Of course it was of some use!"

"R-really?"

"Yes!" though still worried, Toriel offered a large smile to the lizard-woman and the skeleton. "If Frisk is nowhere to be seen in the rest of the Underground, it simply means she was brought back into the ruins!"

"Why would Flowey do that?"

"Maybe because he knew we couldn't find him this way! Excellent deduction, Misses!" Alphys exclaimed with shiny eyes.

"Oh, please call me Toriel." The goat woman turned to Sans. "I'll go back in the ruins and look for Frisk and the miserable creature who kidnapped her. You should go home, your brother might get worried."

"'Kay"

Alphys held both of them back for a few more minutes, just so they could exchange their phone numbers and warn the others in case Frisk was found. Sans didn't have a phone but gave Papyrus's number, just in case. Finally, Toriel left for the ruins and Sans took a shortcut hom. Alphys stayed in her laboratory, alone, lovingly eyeing the two new contacts on her phone. However, as she glanced over Toriel's name, she frowned.

"Huh... Where did I hear that name?"