Fazra grunted in response, her head was already tilted as she tried to triangulate the sound she had picked up on.  

"You saw nothing coming this way?  Whatever I hear is from the direction you came."  

When she walked down the tunnel a short ways, she found that the sound echoed from a smaller offshoot tunnel from the Road.  Down it, she could see a light, small but quickly growing as it approached.  It had the flickering quality of a flame, so she took it for a torch.  

Fazra lifted her hammer so that the light from it shone brightly down the tunnel, and called "Who goes there?"