In places to submit on Wednesday I gave the link to:
Flash bangs are a type of contusion grenade meant to flush an assailant out of hiding or from shelter. They startle.
Right now write a sudden mystery, a flash bang that will leave the reader startled. Flash is typically anything under 1000 words. Start small, the hardest challenge, by attempting a tweet mystery of 140 characters, and grow it, adding different word counts, 50, 100, etc The above is looking for: