"Ah, but it's the most challenging achievements that seem to have the most reward, no?" Ivy replied.  "Anyway, if you need anything else, you know how to find me," she said as she walked off towards where her guard was hiding.<br/><br/>The catacombs took most of the afternoon to reach, the entrance still very well hidden despite the surrounding area reduced to ruins.  A ladder built into the wall gave Mareth an easy way to reach the floor twenty feet below.  Everything inside the catacombs was in much better condition than something as old as the ruins outside suggested.  At first, there was only a short hall in front of Mareth, but after going past a few turns, she reached a tunnel that expanded for what seemed like miles, with several branching paths in the distance.<br/><br/>The tunnels were very similar to hidden escape routes built for royalty, nobles, and other important figures, as a way for them to travel throughout the city, or sometimes even to another city entirely, without being noticed.  Their existence was often a secret held so closely, however, that several generations after they were built, the descendants of those the tunnels were originally built for usually had no idea they were even there, going hidden for centuries until someone manages to find one of the entrances.  She had no knowledge of these tunnels in particular however, though it seemed likely that at some point, the ruins above were part of a much larger city.<br/><br/>Looking around, Mareth was able to notice a few signs of someone being here relatively recently, though it was impossible to say who, or even what, they might be.