The snake could get lost in Hogwarts, and Draco's son has to search for it with his friends. This would create an exciting adventure full of mystery and discovery.
Maybe the snake gets sick, and the son has to take it to the Hogwarts infirmary. There, he meets a new character who is an expert in magical creature health, and this person teaches him a lot about taking care of snakes.
One idea could be that the snake has some magical ability that helps the son in his Hogwarts adventures. Maybe it can sense danger and warns him before something bad happens.
Well, Draco standing up to his parents could lead to a lot of internal family drama. His parents might be shocked and try to bring him back into the fold. But Draco, being determined, could resist. He might leave his family home and start a new life on his own. He could also use his knowledge of the dark arts that he learned from his family in a more positive way, to fight against the real evil in the wizarding world.
Well, he might use the house elf to keep his new house in order. The elf could help with cleaning, cooking, and protecting the place from unwanted intruders. It would be interesting to see how Harry, who has always been against the unfair treatment of house - elves, would manage this new relationship with an elf he owns.
Another idea is that Draco becomes involved in some sort of underground magical movement. After Azkaban, he may be disillusioned with the established magical order. He could join a group that aims to reform or even overthrow the current power structures in the wizarding world, leading to all sorts of adventures and conflicts.
In the fanfiction, Erik could also be in a state of shock at first. He might struggle to accept this new reality. After all, having a son is a huge thing, especially when he had no idea before. He could be hesitant to approach Peter, worried about how Peter will react to the news.
In such a fanfiction, there could be a lot of initial shock and confusion. Draco, coming from a family with a history of prejudice against Muggle - borns like Hermione, might struggle to accept the situation at first. His son, on the other hand, might be a blend of both their personalities. Maybe the son has Draco's sharp wit but Hermione's kind heart. There could be a story arc where Draco has to come to terms with his past actions and beliefs in order to build a relationship with his son.
Well, it could mean that Draco is interested in exploring different perspectives on Harry. Maybe he wants to understand Harry better through the fan - created stories. It could also indicate that he has a new - found appreciation for Harry's character or the whole Harry Potter universe in a different light.
One possible implication could be that he is starting to show an interest in Hermione's character in a new way. Maybe he's curious about how others perceive her and their relationship in the fan - created stories.
Perhaps Snape would force them to work together on a task as punishment. This could be something like cleaning the Potions classroom without magic or helping in the Forbidden Forest. During this time, they might start to understand each other better. Harry could see that Draco isn't just a spoiled brat all the time, and Draco could see that Harry has more depth than he initially thought.
In a fanfiction scenario like this, the mystery man blindfolding Draco could be part of a magical experiment. Perhaps the mystery man is trying to unlock some hidden power within Draco. Since Draco is from the Slytherin house, there could be some dark magic involved. Or, it could be the opposite, and the mystery man is trying to protect Draco from some other dark force by hiding his identity from him. This could lead to a whole new adventure for Draco where he has to trust the mystery man blindly.