They were just heading out of the allotment when Donna stopped them.
"It seems the day for meeting strangers" she said, pointing at a man standing by the road, "though at least he is good looking, not a skinny nothing like that one."
The Doctor ignored her, and hurried over, "Jack, Captain Jack Harness, it is so good to see you."
Jack's eyes lit up when he saw the Doctor, "is that you Doctor?"
"Yes, I have a new body, what do you think?" he twirled around.
"Very tasty" jack remarked, "but from what I have heard you have been scaring our friends, what is going on Doctor?"
"Arh."
Jack looked expectantly at him.
"He's been taken over by a space vampire, and keeps turning evil. He needs to get to his TARDIS, there is a room there which will let him keep control of his body."
"Arh" Jack responded.
"Grandad" Donna knocked her grandad's forehead, "what is going on in that head of yours? What a story."
"What about my Donna?"
"She could stay here, or go home" the Doctor suggested.
"Not on your Nellie, skinny boy, I am coming with you. You're not taking my Grandad of somewhere without me."
"Let her come, she might be able to help."
"But what about……………."
Jack shrugged, "looks like she is coming anyway, so we don't have a choice. But I will try to keep her preoccupied so she doesn't see anything."