Syrennian Hill (Torrune)

The Syrennian Hill is the largest of the several hills that lie within Torrune's walls, and the only one in the Low City. It is situated in the Low City's western half, with the Wainwright's Quarter to its north and Aulgu's Market to the east. The neighborhoods located on the top and flanks of the Syrennian Hill are generally wealthier than the rest of the Low City, and a number of well-to-do merchants have their houses here, but there are also some poorer areas, especially on the north side of the hill. The hill and the neighborhoods upon it are considered one of the major quarters or districts of the city. 
Several springs bubble up from the porous, crevice-riddled limestone rock of the hill. In ancient times, they fed one or more creeks that flowed down from the hill into the Helvander, but now they are directed into the complex network of cisterns, aqueducts, and covered channels that provide drinking water to most of the Low City (ultimately flowing out via sewers and drains into the canals, or directly into the river). These springs also supply the XXXXXX Baths which are located on the southeast edge of the hilltop.
Substantial catacombs are also dug into the northern and northwestern slopes of the hill, serving as burial sites for the city's dead (both for ongoing fresh burials, and the reinterment of remains excavated from overcrowded gravesites at various times in the past). Many of these catacombs make use of tunnels and galleries originally carved out long ago to quarry limestone blocks for the city's construction; the whole hill is honeycombed with such quarry-works (often intertwined with natural caves), as is the rock under much of the rest of the city. These excavations and the catacombs they now house form part of Torrune's so-called Undercity. In addition to use as ossuaries, some of these tunnels have been repurposed as wine cellars and storage chambers for the houses of wealthy merchants above. 
A number of well-to-do families also have their own private burial chambers carved into the rock of the Syrennian Hill, especially on its south- and east-facing slopes. However, these are purpose-built crypts (often gated, and embellished with decorative stonework) to protect the tombs of the household's dead, not reused quarry tunnels stacked with the bones of poor commoners.