When the vanguard of the undead army approached within a thousand feet of the city walls, a piercing whistle suddenly rang in Lancelot's ears. The sound came from a signal arrow shot by a longbowman atop one of the watchtowers, its warning unmistakable.
"Stop, you lifeless undead!" Soveris's loud voice came from the watchtower, "This is Raventown's final warning. If you continue to advance, we will launch..."
"Hehehehe, what will you launch? Surrender perhaps?"