Thomas the Tank Engine Wiki
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The Secrets of Mudslide Mountain was a marketing promotion that was seen around 2014. It is unknown what exactly it was going to be, though likely a Thomas & Friends special, which has been ultimately cancelled. Considering some of the images mention Channel 5 and the YouTube page, this may have also been to advertise new episodes, a web-series or a toy set.

The only evidence of its existence comes from three promo pictures released around this time. It can be indicated from the promos that the plot would have had something to do with Thomas discovering something within old underground tunnels on Sodor. It is unknown where exactly on Sodor these tunnels were meant to be, but one of the promos with Thomas suggests it could be some kind of dual-gauge extension of Ulfstead Mine, as a drawbridge-like chain can be seen in the right-hand corner of the promo.

Characters[]

The rest of the Steam Team and Sir Topham Hatt would likely have appeared as well.

Trivia[]

  • There was a TrackMaster set called "The Mudslide Mountain Set" that was released in 2014. While this is unconfirmed, it is likely that this set is based around the same promotional images.
  • The plan for this special may have later inspired the All Engines Go special The Mystery of Lookout Mountain.

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