A/N: For this to work, let's all pretend that Clara totally knows who and where River is.
To Clara,
Clara dear, this is important. The TARDIS has sustained me for this long, but I fear that someone may be interfering with the memory banks in an attempt to get rid of me. I may not be able to write you much longer if I am unable to remain here. However, I will more likely than not whizz up a spectacular plan that will save me involving a very specific kind of lipstick. ;)
Enough about me; you're going to have to be brave for the Doctor. The time for you to return the favour has come – have you learned enough? Don't let your fear get the better of you.
You can run, but you can't hide.
Sincerely,
River.
