I forgot to post this yesterday! I am so sorry. I'm in the middle of reading through final proof of paperbacks and it's breaking my brain!
I went for something a little different for this one - the old serial killer in a limited setting trope :)
The Lady Doth Protest Too Much...
"One of you did it," Nancy said, waving the gun between the two girls.
"It wasn't me," Emma protested, "you know I could never hurt anyone."
"Neither could I," Mary said, face full of hurt.
"You've always been the evil twin," Emma insisted, stepping away from her sister.
Nancy had to swing the gun further to cover them both.
"I'm not," Mary wailed and began to cry.
"We're the only three left it has to be one of you."
The gun dropped from suddenly lifeless fingers.
"…we're both the evil twin," Mary finished as her sister wiped her knife.
If anyone would like to join in, please do!