If a DM decides that they wish to run an adventure at lower levels, they must propose a B-Team adventure to the group by the end of the DM prior to them's adventure. The vote must be unanimous for this alternate adventure to take place.
The DM tells the group what level they will play at and the group builds characters (or levels down their current PC) with appropriate equipment for their level. (Half the wealth listed on Treasure By Level)
There is no penalty for death in this adventure.