"I want to write a book, but I don't have a good idea."
or the flipside:
"I have a great idea. It needs to be a book."
An idea, however, does not "a story" make.
An idea is a little spark that might set a story in motion, but it's not enough.
What you're really looking for is a situation.
Boy meets girl.
This is an idea.
A German boy falls in love with a Jewish girl in the moments before Hitler's Army comes to town.
This is a situation.
A situation demands the question: "what happens next?"
The idea is where the story starts, but the situation drives the narrative.
When inspiration strikes, make sure it's a situation (or figure out how to turn it into one).
Be Brilliant!
~Katie~