In 1977, GWR 4073 Class 4079 Pendennis Castle was sold to the Cyberslandian Railway Commission, which intended to run her on the upcoming Cybersland Metro and Cybersland Freight railways. The Cyberslandian public wanted a steam locomotive, and then-West Cybersland prime minister Joe Ofcourt had promised them one, possibly Flying Scotsman.
When purchased by the Cyberslandian Railway Commission, Pendennis Castle was in need of considerable boiler repairs, which delayed her departure for the Cyberslands. On 29 May 1977, she made her farewell run in the UK, at the head of the Great Western Envoy from Birmingham to Didcot and return. The following day, she headed to Avonmouth, the port for Bristol, where she was loaded aboard a tractor trailer truck, and departed for Lihtvina, West Cybersland on 2 June 1977.
The tractor trailer truck arrived in Lihtvina on 13 July 1977, and the locomotive was unloaded at the Lihtvina railway yard. She was then towed to the Lihtvina Railway Workshops, where she was rebuilt to include airbrakes, headlamps, and swingable Janney couplers over the hook and chain couplings. She was kept in storage operable until 1983.
On 26 March 1983, Pendennis Castle steamed under it's own power to the opening of the two new Cyberslandian railways, and, together with three new EMD SD38-2 diesel locomotives, drove through and cut the ribbon to open the new Lihtvina train station. Later that month, Pendennis Castle hauled a 59 car grain train from Millin City, East Cybersland to Ten River Country, West Cybersland.
On 12 October 1983, Pendennis Castle and it's vintage 1968 Cyberslandian Railways passenger cars were named "Pani z naszych jezior" ("The Lady of Our Lakes") by Tammy Taffy, wife of Mark Taffy, King of East Cybersland. A brass plaque bearing the name Pani z Naszych Jezior was fitted above the locomotive's smokebox door. Pendennis Castle's first passenger carrying journey in the Cyberslands was a special train to The Great East Cybersland Theme Park on 7 November 1983, with the locomotive hauling 16 passenger cars.
In 1988, OFreight purchased another steam locomotive to accompany Pendennis Castle, a China Railways KF7 numbered 642. The locomotive was built by ALCO in the 1940's and was supplied to China by UNRRA. The locomotive had been just retired from service in China when it was bought by OFreight. 642 had the old OFreight logo applied to it's tender replacing the Jitong Railway logo. 642 still runs today.
In 1989, the locomotive had a historic reunion with LNER 4472 Flying Scotsman who was touring Grid and the Eruowoodian states at the time. During the 1990s, after various difficulties and with the expiration of the boiler certificate, she made her final run on 14 October 1994. The locomotive was stored for many years and was brought back to the United Kingdom in 2000.