The adventurers wait for a while, but when the situation does not change, they move on.
Going along the right labyrinth wall for now, they eventually figure, that that way does only lead them back to their starting point, so they try the other direction. After a few minutes, they hear footsteps ahead of them. At first they have hopes to see Kordunn again, but as they listen more closely, the sound of scraping claws on the stone floor does lower the chances of what they are hearing being the dwarf's boots considerably.