The greatest sin

Zoe was brought to the private room, where Charlotte awaited for her with Édouard. She was thrown to the floor by the soldiers and the two soldiers stepped back. 

Charlotte noticed the bruises on Zoe's wrists and looked at her face too. She looked quite pale as if she was starved for days. It ached her heart. 

"Zoe, did you poison Prince Mathieu?" Charlotte asked. "Look into my eyes while answering to me," she asserted. 

Zoe didn't want to gaze into Charlotte's eyes and kept her down. "Yes, I did," she admitted and began explaining everything, which she didn't tell anyone till now. "The poison was from a rare snake species, which if given in small quantities kills the person after some time. People usually think it is an illness as Her Grace and everyone thought that time."

"Why did you do that? Do you remember the first time you and I met what you said to me?" Charlotte inquired, her eyes started turning watery. 

Zoe gulped and nodded at her.