Wren marked the houses as they were narrowed down, making sure to not damage the map. She then began to examine the distances between the tower and castle; marking out any that would be too far outside or inside of the distances. "The way that I see it, we've narrowed it down significantly... We could run the sewers in that area and look for signs of traffic in the last few hours. It would be nice if we could seal the areas from passage but we'll end up flooding that end of the city and there's not enough holy water in the city to cover them... The owners of the warehouses may help, but I'm willing to bet that ... How deep are the sewers in that part of the city? If there is a basement and they had to dig... what, 4 or 5 feet? That might narrow things just a little more. Do all of the houses have sub-levels?"