The Doctor smiled as he answered excitedly, "Our old friends the Sontarans."
"Sontarans!" Harry said, horrified. "How many are we talking about!"
"Oh...only about a thousand or so..."
"A THOUSAND!"
"Shhh..sh sh sh sh," The Doctor said, finger over his mouth, lowering his voice. "We don't want to alarm anyone.
"A thousand!" Harry whispered.
"Don't worry, Harry!" The Doctor smiled. "I can take care of this without any incidents." There was an old, familiar twinkle in his eye. "I just thought you'd want in on the adventure!"
Harry Sullivan gave pause to that thought. Indeed, it had been ages since he'd seen the Doctor and spent time adventuring. Indeed he missed it. He wondered if Sarah was still traveling with him...
"But, Doctor! I'm married, with a new family to think of now. I can't go traipsing across the galaxy in the TARDIS again..."
The Doctor cut him off, "no no no. I'm merely talking about while we're HERE, Harry! One more adventure...while we're HERE!"
Harry thought a moment, but was not sure how to answer.