Help finding the one where Jim and Spock were both on Tarsus please -- update: FOUND!

There’s a fanfic, K/S, where both as boys were at Tarsus and Jim was rescued after thinking that Spock died. Jim went into Starfleet, promoted lots blah blah, and when he’s getting a tour from Pike of the Enterprise and meets his new First Officer, he becomes emotionally overwrought (in an understated stunned way) when he sees it’s **SPOCK**.

That moment of realization that his life’s mate is still alive after all those years was so poignant, it’s just a perfect moment.

And I’d like to read it again. But I have too many bookmarks on AO3, I guess I should try to organize them somehow – so I can’t figure out which one it is. Do any of you folks know it?

FOUND! -- see comments

Is it this one?

(Anonymous) 2016-02-20 04:23 am (UTC)(link)
http://archiveofourown.org/works/413276