WO-1C. [Of course Jack got the room number, he has no intention of having to hunt the Doctor's room down again. He rolls his eyes a bit, but it's in a fond manner, and then he's shrugging out of his greatcoat so he can get to his wristband easier. A minute later, and he holds it out.]

Not that I need to tell you, but just be careful with it, Doc. If it's fixable, it may be our only way to get us all back home.