This from Tyler Tobolt:
CLFRD arrived with smoke and fire through the roof of the banquet hall on Route 41 at Route 31 around 2am, fire was marked under control at 5:15am. 2nd alarm off box 5-341 was requested with CLFRD Tower 381, Algonquin LITH Truck 181, Wauconda Tower 341, and McHenry Tower 1281 all flowing their master streams in a defensive fire.
more photos from the incident HERE.