He quickly discovered that Rose was gone. Having a very quick mental conversation with her, the TARDIS set to work finding where Rose had ended up. It took a whopping three hours, but they finally found her on an old Grollan ship.
Rose smiled brightly when she saw the Doctor, but there was something in her eyes. A knowledge that wasn't there before.
"I knew you were coming," Rose said as the Doctor took care of Grosh.
"Don't I always," he replied with a cheeky grin, setting to work on her bonds.
Rose frowned. Why didn't he know?
"No, I mean I felt you coming."
The Doctor looked at her like she was crazy. She grabbed his face gently and pulled it to her chest.
"Listen Doctor, listen."
So for once in his life, he was quiet. His face contorted into a mixture of a happy, sad and an angry look.
They had changed her and he didn't want to change her back because he knew how bad it hurt. She was still alive though. And he wouldn't have to face losing her. He wasn't the last of his species anymore. The Time Lords were back.