The hideout, a secret underground base, buzzed with the energy of the mutant superheroes. Lydia, the leader, was discussing their recent mission with Draco, Aria, and Crow.

Suddenly, the secret entrance opened, revealing Lycan and his family. His wife Emma, and their sons Terror, Clawdius, Sirius, and Fang all walked in.

After introductions, everyone settled down to share stories and experiences. The hideout was filled with laughter and camaraderie.

Clawdius entertained everyone with his singing, while Sirius and Aria bonded over their shared interest in technology.

Fang sparred with Draco, the flame and ice manipulator, both appreciating the other's fighting spirit.

Lydia and Lycan watched their respective teams interact, sharing a silent understanding of leadership.

As the day ended, Terror approached Lydia. He expressed his desire to join the mutant superheroes, shocking everyone.

Lydia was unsure. She knew Terror was fast and skilled, but his aggressive nature due to his problematic puphood worried her.

Lycan was also hesitant, fearing that his son's temperament could put the team in jeopardy.

Aria suggested that they should put him to a test, to which Draco and Crow agreed.

Lydia decided that Terror would be given three tests, each designed to challenge his skills, teamwork, and control over his aggression.

The first test was a race against Crow, who was the fastest among them. Terror accepted the challenge eagerly.

Despite Crow's speed and ability to turn invisible, Terror managed to keep up with him, displaying his remarkable speed.

The second test was a battle simulation against Draco. The aim was to test his fighting skills and teamwork.

Terror fought well, but his lone wolf tendencies made teamwork challenging. However, he showed signs of improvement as the simulation progressed.

The third and final test was designed by Lydia herself. It was a test of patience, to challenge his aggressive nature.

Lydia used her powers to create a labyrinth of plants. The challenge for Terror was to find his way out without using his strength to destroy the plants.

Initially, Terror struggled to control his frustration, but with time, he learned to navigate the labyrinth with calm and patience.

Seeing Terror's performance, the superheroes were impressed. It was clear that he was trying to overcome his aggressive nature.

After a long discussion, Lydia and the others agreed to let Terror join their team, under the condition that he continues to work on his aggression.

Lycan and Emma were grateful for the chance given to their son. They knew that this was a great opportunity for Terror to grow.

Terror thanked the superheroes and promised to do his best. He was eager to start his journey as a member of the mutant superheroes.

As the day ended, the hideout was buzzing with a new energy. The addition of Terror to the team brought a new dynamic.

The superheroes were ready to face new challenges with their newest member. Together, they knew they were stronger.

As for Terror, he was excited and determined. He knew he had a lot to learn, but he was ready for the journey ahead.