Random House have released the images for the Day of the Diesels book tie-ins, revealing more on the special.
The logo for the special has been revealed on all 5 book covers showing a blue diamond at the back with a wider but herioc looking text for the special's name.
All but one of the book covers show the logo accompaining the phrases, As Seen on DVD! and The Movie.
The first cover, Day of the Diesels, shows Percy, new character Flynn the Fire Engine, Diesel, the return of Diesel 10 and Thomas supposedly by the Dieselworks.
The second, Danger at the Dieselworks shows Flynn with Thomas, putting out a fire which is out of view.
The third, Flynn Saves the Day is a cheery aftermath after the end of the fire at the Dieselworks.
The fourth, Rail Blazers shows Thomas and Flynn supposedly passing Maithwaite station, where Flynn is clearly on the rails.
Finally the fifth, Steam Team shows Percy, Thomas and new engine Belle who is a blue engine with firehose equipment attached to her.
The Day of the Diesels books hit UK and US book shelves starting from August 9th 2011 whilst the special will be release in fall 2011.