Ok, here's the 'topic' for the short story contest:

"It had taken him almost an hour to climb over the rocks to the hidden beach. His metal detector was strapped to his back and he didn't think many other treasure hunters would go to this much effort. It was low tide, so he started at the water line and began sweeping the detector back and forth. On his fifth pass, the detector gave a strong beep..."

... so I'm off to write an everyday tale of metal-detecting folk. Sigh...

But on the bright side, all my experience of sitting under Brighton pier with a laptop should come in handy on this one.