Poor Little Victoria
In a scene that isn't in the book, a little girl named Victoria who has a prominent birthmark on one cheek wanders under the bleachers at a baseball game and encounters Pennywise. At first, it seems as though Victoria might get away, refusing to get pulled in by Pennywise's friendly act, but when he claims he has the power to blow her birthmark away, she allows him to get too close, leading to her death.
What makes the murder of Victoria even more heartbreaking is that we first meet her in the opening scene of the film, in which a man named Adrian Mellon wins a stuffed animal at a carnival game, only to then notice the disappointed expression of the little girl beside him and decide to give it to her instead. Adrian later goes on to become Pennywise's first victim in 2016, and it turns out that Victoria, sadly, was not far behind him.