Ace Lightning Season 1 Episode 18 The Last Laugh - April Fool's Day Episode Title:The Last Laugh - April Fool's Day.Episode Description:On April Fool's Day, Lady Illusion disguises herself as Mark and sabotages his social life in school, while the real Mark is at home with a cold. Lady Illusion, still pretending to be Mark, confronts Ace, but the real Mark enters when he realises something is wrong. Ace uses a practical joke to figure out which is the real one. Mark tries to patch things up with Samantha, but she breaks up with him, gaining the interest of her best friend Heather Hoffs, who has a crush on Mark.