A Glow in the Dark book starring Thomas will appear in both the UK and US at the start of the Autumn of 2012.
Good Night, Thomas is a new board book accompained by the special light up feature.
The story involves Thomas experiencing Sodor at night time while witnessing bright happenings on ground and up in the sky.
It runs at only 12 pages long and is being published by Random House for their Young Readers range.
Good Night, Thomas hits UK and US book shelves on August 7th 2012.