Dean held onto Grace as she explained herself to him and Castiel.
"The were demons eyes." She said once again. "They were black like coal."
"Dean." Castiel looked at his husband worriedly. Dean knew the look in his husbands eyes wasn't good but didn't want Grace to know that.
"It's okay Kiddo." He lied, kissing her hair.
"No it's not." She replied, more tears slipping down her face. "I'm loosing, aren't I? I'm going dark?"
"No Grace." Cas assured falsely. "You'll be fine."
"Stop lying to me." She snapped. "There is only one explanation for what happened to me and we all know what it is."
"Grace," Dean soothed. "We're not lying to you. We'll get you out of this I promise."
"It is true that your dark side is becoming stronger." Cas admitted. "But believe me, we will beat this."
"The Doctor's gonna take us home and we will figure out how to save you." Dean promised. The TARDIS shook, signaling a landing.
"We're here." Cas noted.
"Come on Baby Girl." Dean cooed, helping Grace stand up.
Dean kept his arm wrapped around his daughter's shoulders as they walked.
"Thank you Doctor." Castiel said.
"Thank you." The Doctor replied. "Without your daughter all of our children would still be in danger."
"You hear that Grace?" Dean whispered. "You're a hero. And you'll always be the hero. I promise."
"Grace?" Scarlett asked. Grace looked up at her new friend and smiled a little. "Thank you."
"You did good today Scarlett." She complemented. "I'm proud of you."
"I think we all did pretty good." Clara drawled, joining the group.
"Well, give us a call if you got any ghostly problems." Dean said. The three Winchesters said their goodbyes and left the TARDIS to their own home.
"I'm going to sleep." Grace informed her parents, heading for the stairs.
"Come here Grace." Dean called his daughter back. "You're not going anywhere until we talk about this for real."
"Daddy please..."
"Your dad's right Grace." Cas said. "Come sit down with us."
"I'm getting out of this am I?"
"Afraid not Kiddo." Dean shook his head. Grace sighed and sank down onto the couch. Her parents sitting next to her.
"Listen to me Grace." Castiel instructed, taking his daughter's hand. "This crack can be fixed. We will not let you break."
"You can't fix an egg once it's cracked." She replied, looking down at her hands. If she looked at them hard enough, she could almost see the cracks creeping across her skin. "Everything just leaks out until it's hollow and empty."
"Don't you dare say that." Dean argued. "You will make it out of this better than before."
"Stop with the self help crap." She snapped. "I don't have some addiction. I'm turning into a monster and time is running out until I'm completely gone." She stormed upstairs into her room.