So
Spoiler!
After this he began to investigate Yvonne because she was attacked by monsters in a village far away from the village she originally lived. Whats more, it was right after what happened in Soleil. He then continues and tells Yvonne the maid Becky's soul had already confirmed that it was Yvonne who ordered her to get the poison for her own plot. After the conversation with Penelope at the duke's estate, Vinter spent a lot of energy summoning the soul of Becky. He wonders why he couldn't believe her. He wanted to immediately tell the duke and clear Penelope's name. But he couldn't.., there were some summonings which were taboo in the empire and Penelope had made up her mind. She had a face that looked like she would die if she didn't leave the duke's state immediately. He then asks Yvonne is she has anything else to say. Yvonne steps forward and her face is revealed. It's creepy - with half of her face crying and the other half fine.
I like to post spoilers for the stories I find interesting because I don't have much time to read novel due to busy schedule
you will find me in most romantic historical manhwa comment sections 
you will find me in most romantic historical manhwa comment sections 