The Chamber - First WriteCampaign Challenge

The first challenge of Rachael Harrie's Platform-Building Campaign has been issued. The challenge is to write a story of 200 words or fewer, starting with the words "The door swung open." Extra degrees of difficulty can be added by ending the story with the words "the door swung shut" and/or hitting exactly 200 words. Naturally, I couldn't make it easy on myself...

I hope you enjoy this little story, where a number of people step into, but don't step out of...

The Chamber

The door swung open. The next person in line entered the empty chamber. Dr. Ziegler fiddled with the control panel and the chamber door closed. A buzz filled the room. A light on the panel switched from steady green to flashing amber. A minute later the door re-opened on a barren chamber.