Join Thomas and friends for a fun-filled journey in this All Engines Go picture book!Thomas and Kana spot a rainbow and decide to find out where it leads, eager to find the prize that''s always at a rainbow''s end. But, as they chug along, the rainbow keeps moving. What will they discover along the way?Look out for other great Thomas & Friends books including:Happy Birthday ThomasThe Mystery of Lookout MountainThomas & BrunoThe 12 Engines of ChristmasMeet Team ThomasThe Biggest Adventure ClubThomas & Friends FeelingsPeep! Peep! Potty StarPotty Star Sticker Activity BookThe Thomas & Friends AnnualThomas has been teaching children lessons about life and friendship for 80 years. He ranks alongside other beloved characters such as Paddington Bear, Winnie-the-Pooh and Peter Rabbit as an essential part of our literary heritage.