"When I was chosen the device was placed around my wrist and is made to not be able to be removed. Its made of one of the strongest alloys our species has..so if you want me to remove it I would have to chop off my hand. " Charlie said matter of factly sitting in the chair . "And Im sure I could help you, for what ever reason you are here I can have my uses." 
Charlie was thinking about how many places she could see, the time zones and planets she could travel to. She just needed to persuade the time lord before her to take her..
Her eyes gleamed as she day dreamed then looked back to the Physicist, his face attempting to distort itself to imitate intimidation.