William and Sparkles are playing Hide and Seek outside. Sparkles is very good at hiding, but, when William hides, Sparkles finds him easily every time. While Sparkles is in the house retrieving a message from Awesome Guy, William decides to try an Invisibility Spell on himself to improve his chances. Sparkles returns in time to see William cast the Spell. The Spell fails to render William invisible, but Sparkles decides to have some fun and make him think he's invisible by pretending not to see him. At first, William enjoys 'being invisible', but soon finds it has its drawbacks. He casts a Removal Spell and heads home. Back at the Star House, Sparkles upholds the pretence for a while, but eventually, reveals the truth to a very relieved William.