@Aria - this looks like a brains over brawn thing.
And that means I have a lot of questions - need data!
Besides assuming their lizard forms, are Celedyr and the drakes DOING anything?
What is the dark gray dragon doing?
Any organized reaction from the Flowers? From Harlequinade?
This pattern, where is the stage (priest blood-covered would-be marriage altar spot) in relation to that? The edge of a circle? The apex of a triangle? The center of some shape or another?
I can make an Arcana test if that would be helpful...
I am guessing any explosion in this crowded place is bound to have lots of collateral damage? Or, are people fleeing/dying fast enough a shaped structural charge might not kill people?
Any particular critical structural points (central load-bearing pillar? keystone to arched roof?)?
It was daylight I believe when we came in - but not sure how much time has passed (or how astronomy works here!) - is it still daylight outside now?
Does this place have plumbing? Big gravity-based water vessel somewhere high?
Besides drake lady, anyone else we spot that could do a marriage (Al's got 11 dice for London Below knowledge, and I'd imagine Robyn and the brides know more than he does - if there's anyone here and alive reckon we could spot them....)?
Sorry to pester, but we can't solve a puzzle without seeing more pieces....