Spoiler alert - if you are a player...go away.
My group is about to encounter the Shrine of the Sea Mother. I suspect they will kill the Kuo-Toans quickly and use Detect Magic to discover the statue of Blibdoolpoolp has a Strong Aura of Conjuration and Necromancy. Since it is a statue to an Evil goddess, the paladin and cleric will want to destroy it. Meanwhile the countdown for Aushanna's arrival will be counting down. There are no rules in the adventure that discuss the particulars/ramifications of destroying the statue (no crunch, or role-play). How have some of you handled this?
Also - Did any of you give the party a clue of what was coming, e.g. have the statue pulsing omniously during their battle with the Kuo-toans, and the pulsing intensifying as the timer counted down?