Se você quer dizer o livro original, a "História" de Where's Waldo é encontrada no Where's Waldo Wiki: Waldo Origin
Aqui está a "história" de acordo com essa página wiki:
Where's Waldo? introduces readers to Waldo, a distinctively dressed man, as he sets off on "a world-wide hike". Waldo travels to everyday places – such as the beach, the ski slopes and the zoo. The book features 12 detailed 2-page illustrated spreads of the different locations. Somewhere amid the crowded scene is Waldo and readers are asked to scour the detailed illustrations to locate the lost traveler. Each scene is accompanied by a postcard to the reader from Waldo, who introduces the scene and comments on his travels.
Waldo sets out on his journey equipped with 12 items to help him on his travels. He carries a walking stick, kettle, mallet, cup, backpack, sleeping bag, binoculars, camera, snorkel, belt, bag and shovel. As Waldo journeys from location to location he loses one of these item, and asks the reader to locate the object left behind in each scene as well.