The letter D is today's theme. I wrote a bunch based on this theme. Here's one of the stories I wrote...
Each operative was named for a letter of the alphabet. As one died, each agent shifted a letter and a new agent took the name of A.Nobody retired.
Headquarters sent out a Rat Alert. "D has turned. Kill."
Z took the assignment. The Z always killed Rats.
A week later in Nairobi, Z pulled the trigger.
Perfect shot.
"Rat killed," reported Z.
"That was F," said Headquarters. "Don't you remember the promotions last month?"
Z looked over the body. "Oops."
Y hunted him down in Finland.
"Why?" said Z, dying.
"Not Y," said Y. "My name is Z now."
Thanks to C-Dogg and McGuff and Russell for the good time at Stag's Head tonight. Amazing that I have any voice left over.
Next time, I bring an extra sock to stuff in my mouth to let other sget a word in edgewise, let alone a word in.

