The fate of Azula, the Fire Nation princess and daughter of Fire Lord Ozai, has been a source of much speculation among Avatar: The Last Airbender fans. After her defeat in the series finale, many have wondered what happened to her in the end.

Azula was a powerful and dangerous antagonist throughout the series, and her ultimate fate was left somewhat ambiguous. In the finale, she was defeated by her brother Zuko and her former friends Aang and Katara. After her defeat, she was taken away by her father, Fire Lord Ozai, and her fate was left unknown.

The most popular theory is that Azula was sent to a mental health facility to receive treatment for her mental illness. This theory is supported by the fact that Azula was shown to be suffering from mental health issues throughout the series, and her behavior became increasingly erratic and dangerous as the series progressed. It is likely that her father, Fire Lord Ozai, recognized this and decided to send her to a facility to receive treatment.

Another popular theory is that Azula was sent to prison. This theory is supported by the fact that Azula was a powerful and dangerous antagonist throughout the series, and her actions had caused a great deal of destruction and suffering. It is likely that her father, Fire Lord Ozai, recognized this and decided to send her to prison to pay for her crimes.

Finally, some fans believe that Azula was simply exiled from the Fire Nation. This theory is supported by the fact that Azula was a powerful and dangerous antagonist throughout the series, and her actions had caused a great deal of destruction and suffering. It is likely that her father, Fire Lord Ozai, recognized this and decided to exile her from the Fire Nation as a punishment.

Ultimately, the fate of Azula is left somewhat ambiguous. While there are several popular theories, none of them have been confirmed. It is likely that her fate will remain a mystery, as the creators of Avatar: The Last Airbender have not revealed what happened to her in the end.