In the second chapter of Shemos, we're introduced to a man who marries a woman, and they have a son who has a sister.
After ten verses of narrative about this family, we're finally told the son's name - Moshe. We get introduced to his brother Aharon a few chapters later, and we don't find out the names of their parents until Chapter 6. And the sister is left unnamed until Chapter 14, where the Torah says that Miriam was Aharon's sister, so we can deduce that she was Moshe's sister as well, and thus probably the one who watched over him as a child.
The question is, why are all the names hidden? Usually, the Torah tells us people's names and genealogies as soon as they're introduced. Here they are withheld for many chapters. Why?