|Monsters||Decayed, Horror, Invader|
|Adjacent Zones||Lost City|
|Area Level Normal||17|
|Area Level Nightmare||46|
|Area Level Hell||85|
The Ancient Tunnels apparently once served as a sewer for the Lost City. Their dungeon architecture is identical to that of the sewers underneath Lut Gholein. Random Unique Monsters spawn toward the bottom of the tunnels, and your reward is a sparkling treasure Chest of possible high-ticket items.
The Ancient Tunnels are a popular Magic Find location, since they are one of the few area level 85 zones and contain no Cold Immunes on Hell difficulty. Builds that use Lightning, however, might find the area difficult due to the Lightning Immunes which often spawn there.