I'm searching for a fic where a young (University?) River sees the TARDIS during an archaeological dig and goes in, thinking it's the Doctor coming to visit her. The Doctor she finds is the Eleventh Doctor post-The Angels Take Manhattan. He is with Clara (dancing, I believe?) and is surprised to see River. River asks about Amy and Rory, worried that they are no longer traveling with the Doctor. He assures her they are safe, and when River asks about "rule one" he says something about not lying about their safety, "never about this." Looking through all my bookmarks trying find this, so any help would be much appreciated! Thank you!