Adolescent hallavins have a blue coat of fur that goes around their back and parts of their legs. The back of the adolescent hallavin tends to have a spike of fur that goes directly up, the color being slightly darker than the rest of the fur surrounding it. White spots tend to cover the back of an adolescent. The underbelly, the inner bits of the legs, and portions of the face are covered in a white set of fur. They have a sharp pair of horns (horns not fully grown obviously due to them being an adolescent). They commonly have yellow eyes and small, sharp carnivore teeth accompanied by four longer, sharper fangs. They stand around 4-5 feet tall and weigh around 250 lbs. Lastly, adolescent hallavins at this point would have grown a tail around 1-2 feet long. Their coats of fur tend to be a lot bushier than that of a baby hallavin.

At this age, hallavins start helping with hunting for food. This is to train them so they may later leave their family and set off on their own. Adolescent hallavins often hunt in a pack of 2-4 or simply hunt with their parents if they are the only adolescent.