As soon as he recovers from the explosion, Mulch draws his greatsword and rushes towards the hole.
"With all that is holy...!!" He looks about, obviously ready, and perhaps a little eager, to start swinging at anything that looks threatening, particularly the bard. But seeing that whomever or whatever caused the explosion has fled, he soon relaxes. He then immediately turns his attention to the closest injured, and quickly attends to them, including using a healing spell, (if it's necessary to save someone's life).
As he he finishes taking care of the wounded, the Cleric notices the wizard, and overhears his phrophecy. He also notices him hand some object to the sorceror looking fellow. Curious, and a little suspicious, Mulch walks over to Ignazio, and demands, "Who was that, and what did he give you?"
(Although it's not clearly stated, I'm assuming that the bard disappeared with the explosion. If that's different, let me know and I will adjust my post, especially if either he's among the dead or is still in the tavern.)