"For palace guard duty, in the wake of the recent civil disorder, Earl-Major Riordan had begun to reequip his men with FN P90s. A stubby, oddly melted-looking device little larger than a flintlock pistol, the P90 was an ultracompact submachine gun, designed for special forces and armored vehicle crews. Helmut's men were so equipped, and as the misguided young blood ran at them they opened fire. Unlike a traditional submachine gun, the P90 fired low-caliber armor-piercing rounds at a prodigious rate, from a large magazine. In the stone-walled hall, the detonations merged into a continuous concussive rasp. They fired for three seconds: sufficient to spray nearly two hundred rounds into the crowd from less than thirty feet."