You never know what you're gonna stumble across out in the Black. And experimenting with the ship you're on can be very dangerous.

Mal doesn't care what assurances Inara gives him. Fancy shindigs are just too gorram dangerous.

There's a time and place for experiments. Out in the Black is neither the time or place. Crew members who experiment with fuel will be dismissed from their post and confined to quarters.

"Dear Diary, today Leonard was pompous and Amy was creepy. They were kidnapped by hill folk never to be seen again. It was the best day ever."

It's never wise to betray a Reader. Even less wise to betray several of them.

Everyone is equal when Reavers come calling. Even genius experimental physicists.

OK, not technically a cross-over, but, to make sense of the story, you must be familiar with characters from both franchises. Sheldon from TBBT, as we know, writes fan fiction. In this story, he finds himself upstaged by the most unlikely member of his group, who, like he, writes a story for the Firefly universe. I imagine Robert Carlyle as Hamish with Jennifer Coolidge his wife.

Penny and Sheldon find themselves catapulted into the future. The far future. Will a certain crew manage to get them home?