Nessy is a threshadon boss sometimes seen by travelers on the Deeprun Tram. Nessy is inaccessible to players.
In the aftermath of the Second War, the humans of Stormwind began the grueling task of rebuilding the war-torn lands surrounding their battered kingdom. In those days, the bonds of brotherhood that cradled the Alliance were still at their strongest, and the dwarves of Ironforge were quick to lend aid to their human allies. King Magni Bronzebeard was frustrated, however, at the sluggish pace with which his country's aid was being delivered to Stormwind, and eager as well to establish a means of reinforcing the human kingdom with dwarven soldiers should the need arise. To address these two concerns, King Bronzebeard turned to Azeroth's most esteemed engineer, High Tinker Gelbin Mekkatorque, who immediately began drafting designs for a grand subterranean railway system that would link Stormwind and Ironforge. His plans would eventualy include making a scale mock-up out of pie tins, which still exists in Sector 17, his quarters in Gnomeregan.
Today, his vision has become reality, and the newly-built Deeprun Tram has developed into an indispensable link between the two great capitals, providing swift and safe transportation for thousands of their citizens, and bolstering military cooperation between the armies of these two proud Alliance strongholds.
To keep the tram running smoothly and safely, thare are gnomes that work on it daily. As such, any problems with it can be quickly addressed.
Shortly after the petrification of Magni, Moira invaded Ironforge and closed the tram, isolating the dwarves in the city. Some time later, Varian led an elite strike team of SI:7 agents through the tram into Ironforge. After the Cataclysm, Bizmo's Brawlpub was opened under the tram.