S2·E40 Now You See Me...

Harry isn’t having much luck trying to hide from the Dinos when they play hide and seek, as they always manage to find him! When Taury inadvertently suggests that becoming invisible would be a good way to hide, Harry decides that Dino World could be a good place to try and disappear. With the help of Albert (Steggy’s invisible dinosaur friend) and a special invisibility hat, Harry becomes invisible and hide and seek suddenly seems a lot more fun! He also uses his new-found disguise to have fun in lots of other ways, but the novelty soon wears off and Harry decides that he doesn’t want to be invisible forever… There’s just the small matter of reversing the effects of the invisibility hat before he’s stuck that way for good!