Rating: All Ages
Word Count: 20442
Author's Summary: The Doctor believes Luke is his son and that Sarah lied to him at Deffrey Vale. The truth is more complex than anyone suspected.
Characters/Pairings: Sarah Jane Smith, the Tenth Doctor, the Eighth Doctor, Clyde Langer, Rani Chandra, Luke Smith, Mr. Smith; Doctor/Sarah Jane
Warnings: None given.
Recced because: I've seen a lot of "Luke is really the Doctor and Sarah Jane's biological child!" stories, but this is the first one I've seen to convincingly pull it off. I was thrilled, because I was always really taken with the idea, but couldn't think of any way to make it work with canon. This fic takes that intriguing premise and runs with it, weaving a very clever story that uses all the tools canon gave it.