Well, perhaps they go back in time to a period when a great dark wizard was rising before Voldemort. Tom, with his Slytherin heritage, and Harry, with his knowledge of the future and dark magic fighting skills, team up to stop this wizard. They face challenges like different magical practices of that time and making sure not to disrupt the timeline while also trying to save lives. It could be a story full of adventure and self - discovery for both of them.
The plot might involve Tom and Harry going back to a time when their families were still alive. Harry gets to meet his parents and understand more about their lives, while Tom has the chance to see his pure - blood family heritage in a new light. They could be involved in some sort of time - related magical quest. For example, a powerful time - based spell has gone wrong and is causing chaos in the past, and they need to fix it. Along the way, they learn about each other's pasts and how they are more similar than they thought.
One possible plot could be that Tom and Harry accidentally stumble upon a time - turning device. They are transported back to a crucial moment in wizarding history, like the founding of Hogwarts. There, they meet the four founders and have to navigate the complex relationships and magic of that era without changing history too much. Maybe they help solve a mystery that was lost to time.
A simple way could be through a magical time - turning device. The protagonist finds it and accidentally activates it, landing them in the past with Tom. They become friends because the protagonist has some unique knowledge or skill that interests Tom.
In the fanfiction, their relationship would be a complex journey. Since they are from different eras in a sense, they have different values and ways of thinking. However, being in the past together forces them to communicate and work as a team. Harry might initially be distrustful of Tom because of his Slytherin nature. But as they experience things like the old magic of the past, they begin to understand each other more deeply. They might start as reluctant allies but end up as true friends who have changed each other for the better. For example, Tom could learn more about the importance of love from Harry, and Harry could understand the allure of power from Tom without being corrupted by it.
In a time - travel Harry Potter fanfiction where Tom is a mate, it could be that the time traveler goes back to Tom's Hogwarts days. The traveler might find themselves in Slytherin, just like Tom, and they start to bond over their shared interests in magic and knowledge. They could then work together on various magical projects, and the traveler could subtly influence Tom to make better choices, like not delving too deep into the Dark Arts.
In the 'baby harry is tom's mate' fanfiction, the plot might revolve around the idea that Tom discovers baby Harry and feels an instant kinship. It could lead to a series of events where Tom protects Harry or they are both part of some grander, magical plan that involves their relationship as mates. For example, they might be fated to change the wizarding world together in a way that no one else could.
A possible plot for Harry and Tom mate fanfiction is that they are both sent on a special mission by Dumbledore. Along the way, they have to rely on each other's strengths. Tom might use his intelligence and cunning, while Harry uses his courage and loyalty. They could also encounter magical creatures that they have to work together to defeat. This would force them to put aside their differences and form a bond. And as they complete the mission, they realize that they can learn a lot from each other.
The plot could involve Harry being a sort of chosen one in the world of the Greek gods. Zeus sees his potential and takes him under his wing. As they spend time together, their relationship evolves in an unexpected way. Harry could introduce some new concepts from his own world to Zeus, and they start to depend on each other in a way that makes others in the godly world think they are mates.
One possible plot point could be Harry using his knowledge of the future to save Sirius from his untimely death. For example, he might prevent Sirius from going to the Ministry of Magic that fateful night. Another could be Harry befriending Sirius even earlier in time and changing the course of their relationship. Maybe they end up working together on some secret mission against Voldemort much sooner than in the original timeline.
Well, it could be about Harry Potter finding a way to enter Tom Riddle's world in the fanfiction. Maybe he's on a mission to change Tom's path to the dark side.
One possible plot could be that Harry discovers his unique connection to Poseidon. Maybe he has some special powers or abilities related to the sea that start to emerge. He could then embark on a journey to understand this new part of himself, facing challenges along the way as he tries to balance his normal life with this newfound identity as Poseidon's mate.
In this fanfiction, it might be that his mate has some hidden secrets. When these secrets are revealed, it causes a situation where Harry gets hurt. For example, his mate might be related to an enemy in a way Harry didn't know. This revelation leads to a conflict and Harry ends up getting injured in the process. Harry then has to decide whether to forgive his mate or not based on the circumstances.