journey on 13 June 1842. Phlegethon was one of the five rivers of the Greek underworld. The name was later carried by a Hawthorn class locomotive. Phoenix 1842–1870. Built by Nasmyth, Gaskell and Company. The phoenix was a Greek mythological bird that is reborn from the ashes of its fiery death. Pluto 1841–1870. Built by Fenton, Murray and Jackson. This locomotive was named after Pluto, the Roman god of the underworld. Pollux 1842–1866. Built by Nasmyth, Gaskell and Company. Pollux was the twin of Castor in Greek mythology; the name was later transferred to a Hawthorn class locomotive. Priam 1842–1864. Built by Nasmyth, Gaskell and Company. Priam was the king of Troy during the Trojan War. Proserpine 1842–1873. Built by Fenton, Murray and Jackson. Proserpine was the goddess of the Greek underworld. Saturn 1841–1878. Built by R B Longridge and Company. This locomotive is named after Saturn, the Roman god of the harvest. Spit Fire 1840–1878. Built by Jones, Turner and Evans with a wheelbase. Stag 1840–1870. Built by Sharp, Roberts and Company. A stag is a male deer. Stentor 1842–1867. Built by Nasmyth, Gaskell and Company. Stentor was a herald in the Trojan War. Tiger 1840–1873. Built by Sharp, Roberts and Company, it derailed near Chippenham on 7 September 1841 due to an earthslip, although Rising Star, which was coupled in front, ran over the damaged track without mishap. A tiger is a big cat. Venus 1841–1870. Built by R B Longridge and Company. This locomotive was named after Venus, the Roman goddess of love. Vesta 1841–1864. Built by Fenton, Murray and Jackson. Vesta was the Roman goddess of the home. Vulture 1840–1870. Built by Sharp, Roberts and Company. A vulture is a large scavenging bird. Wild Fire 1840–1867. Built by Jones, Turner and Evans with a wheelbase. One of six Firefly Class locomotives named with a fire theme; a wildfire is another name for a forest fire. Accidents and incidents On 25 November 1852, Lynx was hauling a passenger train which was derailed at Gatcombe, Gloucestershire. Replica Firefly (2005) A 63rd member of the Fire Fly class was unveiled to the public in 2005. It is a replica of the original Fire Fly and is kept at Didcot Railway Centre. It can be seen in steam on regular occasions throughout the year. In literature A silver model of a Firefly Class locomotive provides a plotline in the novel