wait. that’s what Midnight was about.
it made everyone turn their backs on each other.
and that’s what made it dangerous.
but now that’s literal. you turn your back on someone and you kill them. you go behind someone’s back and it kills you.
because that’s what it learnt the first time it met the Doctor. the first time it met any other life. it learnt how they turn on each other, how it can gain power by making monsters out of people.
so this is what it became. because of what they did to each other.













