Sorry what the fuck was this episode? Why did the Doctor disappear and the tardis lock? What was the resolution? Why 73 yards? What was she telling them? How did she go back? Why did the Doctor know not to read the notes in the second timeline but not the first?
The moments of tension were really good, and as a short story even independant of Doctor Who it was very compelling, but the end was so fast and made no sense to me.