Based on MLP's episode, Bridle gossip.
Alphys, Undyne and other monsters were taking a stroll on the Underground. The Underground was now in peace with a city of humans next to them that didn't have anything against them. It took time for them to get used with the humans.
"The day is so calm today..." Kris commented.
"I agree." Undyne said.
"Kris, what's that on your arm and on Frisk's arm?" Papyrus asked.
"Friendship bracelets. There's a lot of tutorials on SuperTube explaining how to make and use one." Kris said.
They saw a figure wearing a cloak.
"Who is that?" Frisk said.
"I don't know, but we better hide! It can be a kidnapper, or murderer!" Alphys said.
"Don't be silly. That's Raymond. He is a great person. He said he is a alchemist." Undyne said.
"Tell us more about this guy." Papyrus said.
"He only said that he pratices alchemy, and that he is a healer, and pratices Apotropaic magics. He told me that he believes in spiritualism. He wears a Nazar necklace, a pentagram necklace, and a star of David." Undyne said.
"What is a Nazar?" Sans said.
"He said that is a amulet against evil forces." Undyne replied.
"I heard about spiritualism. It's about after we die, and the place where we go. You can even communicate with people that aren't alive! I heard about doppelgangers too, that are spirits that copies you." Sans said.
"And he said that he lives on Summergarden Forest." Undyne said.
"Let's see what is this guy doing!" Mettaton suggested.
"Wait, where's Alphys? She suddenly disappeared without saying anything!" Papyrus said.
"I noticed now that you said." Sans said.
Everyone was on the forest. They passed by some flowers. Alphys was hidden behind a tree, seeing what Raymond was doing.
"I need more clovers..." Raymond said.
"Alphys!" Undyne said.
"Be careful! Those Mockalotty are dangerous!" Raymond said.
"You're weird." Sans said.
"Watch your mouth, fellow! Mockalotties are devilish!" Raymond said.
Everyone was at Undyne's house. Papyrus' body was full of yellow circles. Isadora's fur was long, making her looking like a komondor dog. Undyne's tongue was full of white dots. Natasha was small now.
"Great! That is great! I'm blind now!" Sans said. His eyes were closed, and a pink slimy thing was in both of his eyes.
"I thonk Ruymand threw a jhhurse on shuus!" Alphys said.
"Undyne, are you okay?" Papyrus said.
Undyne nodded, as a no.
"Really?" Papyrus said.
Undyne shake her head as a yes.
"Undyne, is everything okay?" Papyrus said, worried with Undyne.
"I prefer not to talk about this shit anymore." Undyne said, with a male voice.
Everybody was at the forest again. The monsters were looking on a log cabin window.
Raymond was putting a red liquid on the cauldron. He started to speak a unknown language.
"Dodo ya sew thhohth? Hshe is sphookaang a stroongee longeeage!" Alphys said.
"Alphys, if he us speaking some unknown language, I don't know. I didn't ask him yet. I just wanna get rid off this male voice!" Undyne said.
"Ukey..." Alphys said.
"Raymond! It's me, Undyne! Open the door!" Undyne shouted.
A brown haired man with green eyes opened the door.
"Oh dear! What happened to all of you?" Raymond said.
"Ya spakly on a struuungy way." Alphys said.
"What she had just said?" Raymond said.
"She said you spoke on a different way." Undyne said.
"What do you expect from me? I'm a tongue-tied guy!" Raymond said.
"When you were at the cauldron, dumbass." Undyne said.
Raymond started to laugh loudly.
"That is Latin, dude! I speak Latin! I was born on United Kingdom and I moved to Vatican!" Raymond said.
"We don't know, but after we stepped on that red flowers, we are like that." Undyne said.
"The pollen that Mockalotties spit cause disgraces. Luckily, I can cure that." Raymond said.
"Hey, isn't this star here on a circle is a signal of evil?" Isadora said.
"Only inverted pentagrams. This is a normal pentagram, for protection. Like my Nazar necklace and my star of David's necklace." Raymond said.
Raymond put some leaves of clovers on his cauldron with some lavender flowers.
"The Cloverittes can remove the effects of a Mockalotty Poisonitte." Raymond said.
"Could you give some for us?" Undyne said.
"Yes, dear." Raymond said.
Everyone was back at Raymond's house again.
"The remedies worked?" Raymond said.
"Yes. My friends thought you were a murderer or kidnapper, but I want you to explain for them what you exactly are." Undyne said.
"I'm an a alchemist, a scientist and a healer at the same time. My remedies are made of plants. I luckily know that some species here are poisonous, and others aren't. I discovered that Echoing Flowers and lettuces can cure lungs disease!" Raymond said.