This device is exactly similar to the brazier commanding fire elementals. However, when a fire is started within it the burning will cause great clouds of magical smoke to pour forth in a cloud of 1" radius from the brazier. 

All creatures within the cloud must save versus magic or fall into a deep sleep. At the same moment a fire elemental of 12 hit dice will appear and attack the nearest creature.

Sleeping creatures can only be awakened by means of a dispel magic or remove curse spell.