Title: Golden Ratio
Author: Hope (angstslashhope, hope)
Fandom: Torchwood (crossed with Doctor Who)
Wordcount: ~11,000
Genre: fixit, futurefic, crossover.
Rating: Mature
Characters(s): Jack/Ianto, the Doctor
Notes: My final work for 12 Days of Cliché. Thank you to cupidsbow for cheerleading and beta!

Summary: Some things are constants. (A canon-compliant fixit, spanning several centuries.)

Read on the AO3.