"Ah. Im sorry, Doctor." The Immortal looked at the male with some sadness in his voice. He felt sad for his doctor. He knew what is was like to feel loss. Harkness hugged and kissed the Time Lord on the cheek, not realizing that he had forgotten. "Come on in. No one else is here but me. Everyone's out for a few days. Last mission scraped them up a bit." He told the Time Lord as he walked over toward the main entrance to the base.