Proteus is a legendary narrow gauge engine with a magic lamp hung upon his funnel. Legend has it that should someone finds the lamp, their wishes will be granted Skarloey told this story to the others, which made Peter Sam search the line looking for the magic lamp.
The clues to finding his magic lamp are feeling a rush of wind when the lamp is near, hearing a strange creaking sound, and see a flickering light that shines on and off.
Basis
Proteus is based on the Talyllyn Railway's "Sir Haydn".
Proteus' Learning Curve Wooden model
He appears to have the same body as Sir Handel, which, many believe, is what led to his return in the tenth season.
Livery
Proteus is painted bright yellow with red lining.
Appearances
Proteus made a non-speaking role in the ninth season, and was mentioned again in the twelfth.
Merchandising
Proteus is available as a Learning Curve Wooden model (with a working lamp) and as a Trackmaster model. A "My Thomas Story Library" book dedicated to him, based on "The Magic Lamp", is set to be released.