<blockquote>This was a pinch-hit for the Multiverse crossover ficathon, and the request was 'Rodney McKay & the Doctor'. Which I had fun with, even if I did give myself a headache hammering out the two separate-but-interweaving chronological threads :)</blockquote>
➤ auuuugh oh I love this, and I love how as Rodney's timeline progresses he gets more stable and happy, whereas the last we see of the Doctor is him in the middle of the Time War and OUCH.
➤ also at https://archiveofourown.org/works/522052