"At Sherrinford, then, how did you know the coffin was a reference to me and not Kate, then," Molly asked as she and Sherlock sat at Angelo's on one of their first official dates.
"She was taller- the coffin at Sherrinford would have been too short," was Sherlock's matter of fact reply.
Molly nodded calmly once, but after a moment she started trying to hold in giggling. Sherlock looked at her, eyebrow raised. "I'm sorry," she worked out, "Really. I know, it's horrible of me, but 'She was taller!' That's all it was. All of Eurus' games and manipulations, and it came down to 'She was taller!'" With that, Molly lost it, bursting out laughing.
Thankfully, Sherlock wasn't offended at that because, sometime during her explanation, he had started chuckling, too.
Author's note: And that's a wrap! So this is a cut-scene that I had originally drafted to be part of the big reveal, but ultimately didn't fit. However, I loved the idea too much to get rid of it entirely, so I wrote it to work as an epilogue. Here you go! Whatcha think?