Baba Yaga is a character from Slavic folklore, which means she comes from stories that people in certain parts of Europe used to tell each other a long, long time ago. Baba Yaga is often described as a very old woman who lives in a hut in the forest. But this is no ordinary hut; it stands on giant chicken legs and can move around, almost like a huge robot. Baba Yaga is a witch, and she is known to be very scary and mean. She might even eat children who misbehave!
But there's more to Baba Yaga than just scaring people. Some stories say that she can be helpful too. Sometimes, she gives people magical gifts or advice, but only if they ask her nicely and are respectful to her. In some stories, she even tests people to see how brave and smart they are. If you pass her test, she might reward you with something special.
So, in short, Baba Yaga is a witch from old stories who lives in the forest in a house with chicken legs. She can be very scary and eat children, but she can also be helpful and give magical gifts and advice to people who treat her with respect.