Next weekend, I and three friends are going to sit down and have a game of D&D. None of us have ever played D&D before and I have been given the role of DM. I'm looking for a good pre-generated adventure for absolute beginners to get us all into the game and teach us how the game is played.
The adventure should be simple but exciting and I should easily be able to understand what I'm supposed to do and say. The adventure preferably would be free and have any maps needed.