Complex sentence: Before the child is born, Henry travels forward in time and happily meets their pre-teen daughter, Alba; she tells him that she is a time traveler, too, but has increasing control over when and where she travels.
Split into simpler sentences: Before the child is born, Henry travels forward in time and happily meets their pre-teen daughter, Alba. She tells him that she is a time traveler, too, but has increasing control over when and where she travels.