The Girl Who Saw the Blue Star

It was happening again. Daisy was dreaming again. They were impossible dreams. Dreams that weren't happening, that could never happen. She was just too ordinary. Nothing exciting happened to her. She had no future, and her past was enclosed in her mind, and nobody interfered with it. Nobody in their right mind would want Dopey Daisy to come with them.

Fortunately for her, the Doctor wasn't in his right mind, and he hadn't been for some quite time...