Just after 3am.  Engine 412 was alerted for a dwelling fire on Niner Rd. in Carroll County.  First arriving Engine 131 from Gamber found a fully involved vacant dwelling.  The crew from engine 412 assisted in overhaul.  Units from Gamber, Reese, Sykesville, Reisterstown, Glyndon, Franklin, and Arcadia responded.  Fire was under control in about 2 hours.