Ultimate Solution

Brynadan: "Where he acquired it or concocted an ultimate solution, he may never divulge.  But that sunset, Allistair-Allistdan had no need for the battering ram intended for the North Gate.  His sciences would breach that impregnable door."
"If the city-state before Allistdan did not acknowledge his ultimatum demands, he knew he could not hold back his Horde."