Several generations indeed. She grinned as he stared at her, rocking back and forth on her heels. "Not quite," she said with a laugh. The ghost of Christmas past? What a funny notion. She had forgotten how funny the Time Lord could be. "No, I'm something older," she said, "and not from Charlie's tales. I'm Endless, Doctor." She smiled and stuck out her hand. "Death. But you can call me Didi. Most people do."
"You are Moping." Moping with a capital m, because when the Doctor moped, he went all out. "You've lost so many, and now you don't want to try anymore. It's sad. You need people, Theta. You're not meant to travel alone." She kind of wanted to hug him, but didn't want to overstep any boundaries.