The Cumaean Canal
An engineering marvel, this route to the Surface is constructed from colossal arches supporting a series of locks. Its iron pillars strain the laws of perspective. Just looking up at it makes your neck hurt.[1]
The Cumaean Canal is the primary route for sea travel between the Neath and the Surface.
The Gate to the Underworld[edit | edit source]
"Here, the dark waters run down from the surface, from a brighter sea..."[2]
After the Fall of London in 1862,[3] an unnamed explorer eventually discovered a return route to the Surface.[4] Contact was reestablished,[5] and construction of the Cumaean Canal began that year thanks to the joint efforts of Surface governments and the Masters of the Bazaar. The process was quick; engineers exploited natural hollows where possible, but the rest of the excavation relied upon a combination of conventional methods, the esoteric powers of the Masters, and the might of the Stone Pigs.[6]
Located a short shipping distance south of London,[7] the Canal consists of a vast series of locks supported by colossal arches,[8] arranged in an ascending squared spiral.[9] Ships bound for the Surface ascend the locks; those from the Surface descend.[10] Entry from the Neath is regulated through the Albertine Gate,[11] where vessels undergo inspection before being admitted.[12] At its base, in the Staging Area, temporary half-legal hostelries in long-moored ships and cafés cater to zailors and travellers,[13] though the Bazaar’s dislike of competition and London's laws prevents permanent pubs or wine-shops.[14] The Canal reaches the Surface at Lake Avernus in southern Italy,[15] a site the Romans believed to be the entrance to Hades.[16] Its final stretch was built overland, running past the town of Bacoli and into the Gulf of Naples.[17]
Alongside the Travertine Spiral, the Cumaean Canal remains one of the principal arteries linking the Neath to the world above.[18] Though the Canal does not carry the volume of trade of a traditional commercial thoroughfare,[19] it is indispensable as the chief channel for importing goods between the Surface[20] and the Neath.[21] Imported items are valued at twice their original price, making the route highly profitable for enterprising traders.[22] The Canal is also a lively theatre for the intrigues of the Great Game,[23] but Surface governments ensure that it remains surprisingly well-maintained and efficient all the same.[24]
The Locks[edit | edit source]
"There are various staging points around which small trading posts have sprung up. Zee captains travel up as far as their courage takes them, Surface captains venture down to meet them."[25]
Various staging points and trading posts have sprung up along the ascent of the Canal, where captains meet to barter goods and resupply.
Symphysis Point[edit | edit source]
"Symphysis Point is a small but bustling staging station. Wan zailors mingle with their Surface counterparts. There is a healthy exchange of knick-knacks and gewgaws – the items doubling in value when moving from Surface to Neath, or Neath to Surface."[25]
Symphysis Point is a busy staging station located several locks up the Canal.[26] It has a single restaurant, with a potato-based menu[27] marketed to zailors sick of ship rations;[28] a quaint little gift shop offering cheap handmade souvenirs;[29] and a ship repair shop to service vessels traveling the Canal.[30] The station is owned by the Brooding Captain[31] and managed by his Royal Enforcers.[32] Workers are typically Surfacers who rotate in twenty-one-day shifts, long enough to earn wages yet short enough to return safely to the Surface before sunlight would prove fatal.[33] Increasingly, however, the Enforcers extend contracts past that limit, trapping workers below with no hope of returning.[34]
Lamentation Lock[edit | edit source]
"Lamination Lock, 'e says." One zailor tries to tap his nose and misses. "Issa bank. Or an 'ostipal. Or a prison or summat."[1]

Lamentation Lock is a stone building set into one of the giant gates which punctuate the Canal, placed about halfway up to the Surface.[35] The Lock and its Warden are the subject of many tales and mysteries; different accounts state that Lamentation Lock is a bank, a hospital, a prison, or a summit.[36]
In truth, the Lock is a little bit of each. It is a place filled with thieves, murderers, and spies, and some of their ill-begotten loot.[37] It attracts those running away from trouble - which is often of a personal, psychological character, but at times includes prosecution or intrigue. While everyone is free to enter, the Warden does not permit his inmates to escape easily.[38] Most who enter have no reason to leave anyway, as they might be trying to forget their past and the memories of what led them to Lamentation Lock.[39] Only by coming to terms with oneself can one leave the Lock,[40] though there was never truly anything (aside from the Warden) preventing them from leaving.[41]
The place itself is divided into three Wards[42] (Violent Ward,[43] Thieves' Ward,[44] and Traitors' Ward),[45] and most visitors-turned-inmates find their home in one of these. They spend their time scheming, planning, and brawling with other inmates, but they never quite find the right time or opportunity to leave and put their plans in motion.[46]
Scientific Inspirations[edit | edit source]
"There are a few things about the canal I still don't fully understand, in fact. Surely the pressure and the differentials of height make it difficult..."[47]

A lock, in a canal, is a walled chamber with gates at both ends that allows boats to move between stretches of water at different heights. The water level in the lock can be changed to match either the higher or lower stretch of canal. Once the boat is inside, the gates shut behind it, sealing it in. If the boat needs to go uphill, water is let into the chamber through sluices. The chamber fills, and the boat rises with the water. If the boat needs to go downhill, water is drained out until the chamber matches the lower water level, and the boat sinks with it. When the water in the lock matches the next stretch of canal, the gate at the far end opens, and the boat sails on. In essence, a lock is a water elevator.
The Cumaean Canal appears to operate on this same principle, but magnified to a scale that beggars belief. It seems to consist of an immense sequence of pound locks, each chamber bounded by gates and independently adjustable, stacked one atop another in a square spiral descending into the Neath. On the Surface, the most ambitious example of this technology is the lock system at the Three Gorges Dam in China, where ships are raised or lowered by about 370 ft (113 m) over a staircase of five chambers.[48] By contrast, while the peculiarities of Neathy geography make this measurement suspect, geographers estimate the vertical distance between the Surface and the Neath to be roughly one mile (1,600 m).[3] If we take that estimate at face value, it would mean that the Cumaean Canal manages an elevation change some fourteen times greater than the world’s largest Surface locks. A marvel of engineering indeed.
References[edit | edit source]
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