This challenge promises to be quite an interesting one, not only for the rather interesting topic, but also because there are 18 participants. It seems like each time the challenge rolls around there are about 5 more bloggers participating. Here are links to all of the participants in the fourth Mystery Topic Challenge:

Blog Ninjas present The Mystery Challenge #4! The topic was proposed by Mr. President of Textual Relations, the winner of MTC #3. Below you will find all the entries for this challenge. Please visit and read them all. Once you've read all the entries, please vote for your favorite. Members of the forum may vote in the poll HERE. Guests can place their vote in this thread HERE. Voting concludes on Nov. 22nd.