Amy sits down in the TARDIS, she'd found some clothes to fit Jack, she'd need to ask the Doctor why he's got so many baby clothes in the wardrobe but then he does have clothes from almost everywhere and everywhen.
"OK." The Doctor strokes his chin. "This is Jacks handwriting and it smells like him…so he must have delivered…himself to your house. But Jacks never met you so how did he unless…he looks over to Amy who wasn't listening to a word he was saying.
"Arnt you just adorable" she smiles as Jack smiles back holding on to her finger.
The Doctor rolls his eyes, "Somethings never change." Walking over he pulls out his sonic and scans Jack. The babys eyes dance as he watches the light and tries to reach for the sonic. "You can't have that Jack." The Doctor holds it up and looks at it. "hmm…This is more complicated than I thought."
"Do you know how it was done?" Amy now looks at the Doctor paying attention. "who did this to him?"
The Doctor sighs. "I have a few ideas as this is a full transformation, he is physically and mentally 6 months old, his immortality is still there…but there is something else…seems there's a chemical tracer in his blood. Whoever did this to him might be looking for him." He puts his sonic away and Jack begins to cry.
Amy holds him rocking him, "I think he likes the sonic."
The Doctor looks to his old friend sadly, "I will find a way to get you back I promise." He holds a finger out to Jack and his crying now a sniffle Jack takes the Doctors finger making the Doctors face melt into a smile. "I'm sorry Jack but we are going to have to use you to find those responsible."
(OK guys what happens next is up to you who is responsible? Vote and the person or persons with the most votes I'll use.
The Silence
The Master
The Sycorax
Thanks for reading I'm not really a writer just like to put ideas/thoughts/stories down and share)