A cobweb slooowly stretches, then breaks as a shutter creaks stealthily open. Wisps blow gently in the entering zephyr, and a shaft of sunlight illuminates clouds of dancing dust motes, newly animated. Seems to the small bat peering in that the room hasn't been visited in nearly a year...

Undaunted, the bat opens the shutters the rest of the way, and starts to flit into the less-darkened Tavern, but a hearty sneeze blows them back towards the window. Grabbing the sill with a hind foot, the bat dangles crazily, sneezing madly, which blows the dust motes and mites into an even more frenetic dance... and someone ( -thing?) else suddenly sneezes!

From behind the bar!

Sounds like from the FLOOR behind the bar!