By the time she had reached ground level and burst out, somewhat 
unwisely, into the building's lobby, the girls had breached the walls of the 
building in several places and rushed in upon the remaining defenders. They 
moved in groups of four. One girl (the largest) would rush toward an opponent, 
holding a pointed bamboo stick aimed at his heart. While his attention was thus 
fixed, two other girls (the smallest) would converge on him from the sides. 
Each girl would hug one of his legs and, acting together, they would lift him 
off the ground. The fourth girl (the fastest) would by this point have circled 
all the way round and would come in from behind, driving a knife or other 
weapon into the victim's back. During the half-dozen or so applications of this 
technique that Nell witnessed, it never failed, and none of the girls ever 
suffered more than the odd bruise or scrape.