Two new stories due to appear in a US book title have been teased for the 18th Series.
A 2 in 1 release called Dinos & Discoveries/Emily Saves the World is being published by Random House for January 2015.
The latter cover depicting Emily pulling a flatbed of a prop globe of the earth appears to form a new still.
Thomas however is seen with an unknown green engine behind a prehistoric landscape for a Dinos promo shot.
A previous double book installment of Spills & Thrills/No More Mr. Nice Engine for Season 17 was made available earlier this year.
Season 18 meanwhile is on course for an autumn broadcast in the US and in fall 2014 for the UK.
Dinos & Discoveries/Emily Saves the World from Random House hits US book shelves on January 6th 2015.