At least some content in this article is derived from information featured in Harry Potter: Hogwarts Mystery. Spoilers will be present within the article.
One day, Borf followed Chiara Lobosca out of the Forbidden Forest. He continued to live in the forest, but frequently visited Chiara, whom he had befriended. The cub was named Borf as that was what the sound he made sounded like.
When a worker of the Werewolf Capture Unit, Cecil Lee came to investigate Hogwarts following a werewolf attack, Chiara and Rubeus Hagrid showed Borf as an example of a non-violent werewolf. Jacob's sibling, who was also there, was confused.
- Harry Potter: Hogwarts Mystery (First appearance)