The sodor engine is considered to be the most amusing part of the children's book based on the series of railways. This is an illusory railway estimate which is narrow in size. The main location of vocation been done on the engine and to hut it when it is not been running out is the station of Arles dale. The engine runs out on the railway line of sodor in the previous times was for the purpose of carrying out goods from one defined place to another. The trip of tourists to the place as have started increasing drastically, the engine also started up with carrying the range of commuters too. This railway has been the part of the children's book of imaginary tale, but also holds out the most interesting place for an individual to tour and visit the railway line which have been bunged up in the year of nineteen hundred and forty seven.

The entire railway lines in the place have already been clogged down in the mentioned year, but the three sodor engine is still working out with carrying the passengers till the date. The railway is been existed out for more than sixty years of its working out before its closure. Number of engines ran on the track of this railway line, but the major four engines have got its gratitude in the books of the children's imaginary tales. The first one amongst those is known to be the Duke. It was been mentioned in the same books that this engine has been introduced in the year of eighteen hundred and seventy nine. The engine ran on these tracks for a very long period of time, till the time the railway lines been clogged in the year nineteen hundred and forty seven. The next engine in the same list is known to be the Stanley and it was considered to be the most fast running engines amongst all.

The next series in the sodor engine is Falcon followed by the last one known as Stuart. The railway lines were been known to be closed due to the reason of flood which captured the entire region. The entire four engines been mentioned were named to be with the number one two three and four respectively in the books of children. After the unexpected clogging of the railway line the entire engines have been purchased by some or the other railway lines and it now runs on diverse tracks with the innovative names.