Note: this just goes to show that Encounter Level or CR is never a really accurate portrayal of challenge. These pirates/mercenaries were on average 4-5 levels less than the Defenders' average level; I expected this to be a cakewalk. Bad luck and some errors in tactics made all the difference in the world.
Next update: Agar bounces back! Lawyers earn fees! Divination spells get abused! Babies get used in unique and innovative ways! And in the Smugglers' Tunnels beneath the city, a trap is laid....