One possible plotline could be Harry gradually losing his magic as the 'magical cancer' progresses. He might struggle to keep it a secret from his friends, especially Hermione and Ron, who would be desperate to find a cure. Another could be that he starts having strange visions or experiences related to the magical source of this 'cancer' which could lead him on a quest to find its origin in the wizarding world, even as his health deteriorates.
Perhaps the story could focus on how the wizarding community reacts to Harry having this magical cancer. Some might see him as a symbol of hope even in his illness and rally around him, while others might fear that it's some sort of dark magic that could spread. Harry could also try to use his remaining time to teach the younger generation about the importance of love and friendship in the face of a seemingly incurable ailment.
In such a fanfiction, Draco might initially be in denial about Harry's condition. But as time passes, he realizes the gravity of the situation. He could then embark on a journey to understand the nature of this magical cancer, which might lead him to some dark and forgotten corners of the wizarding world. This could also be a story of redemption for Draco, as he tries to save the life of someone he once considered an enemy.
One possible plotline could be that Harry is dying from a mysterious dark curse. His friends, like Hermione and Ron, are desperately searching for a cure. They might travel to far - off places, seeking ancient magic or the help of powerful wizards. Another plotline could be that Harry is sacrificing himself for the greater good, perhaps to defeat a new and powerful dark force. His slow death could be a time of self - reflection and him saying goodbye to his loved ones.
In a fanfiction with Naruto dying from cancer, the story might focus on how the ninja world reacts. His allies from different villages might come together to try and find a cure. However, Naruto, knowing the slim chances, might start to prepare for his death. He could pass on his teachings and the will of fire to the next generation in a more urgent and poignant way. His death could also lead to a shift in the power dynamics among the villages, as he was a unifying figure.
The theme of mortality would be prominent. Harry's impending death due to magical cancer makes everyone, especially Draco, confront the fragility of life in the wizarding world. Also, the theme of self - discovery for Draco as he delves into this mission to save Harry and discovers new aspects of himself and his capabilities.
One possible plotline could be that Harry is suffering from a mysterious curse. Maybe he got it during a battle with a dark wizard. His friends would then be on a desperate quest to find a cure, traveling to far - off places and consulting with various magical experts.
Perhaps in the fanfiction, Tim Drake is poisoned by an unknown enemy. As he is dying, he uses his last moments to pass on important information or clues to his fellow heroes, like Batman and Robin. He could be lying in a hospital bed, his strength fading as he whispers vital secrets.
One possible plotline could be that the magical eye allows Harry to see the future in a hazy way, and he has to figure out how to use this ability to prevent a great disaster from befalling Hogwarts. Another could be that the eye is a target for dark wizards who want to use it for their own evil purposes, so Harry has to constantly protect it.
They would all come together to create a special environment for Harry. They might set up a room in Hogwarts filled with all the things he loves, like pictures of his parents, his Firebolt, and his invisibility cloak. They would also try to organize magical events, like mini - Quidditch games in the Hogwarts grounds just for him, to keep his mind off his illness as much as possible.
Some fanfictions in this vein might explore the idea of legacy. Harry, knowing he's dying, could be concerned about how he'll be remembered. He might try to pass on his knowledge and values to the younger generation at Hogwarts. It could also show the impact of his illness on his relationships. His relationship with Ginny might be strained as they both struggle to deal with the reality of his situation.
One possible plotline could be that Ratchet uses his medical knowledge to try and find a cure for the reader's cancer. He might take on her case personally, spending long hours researching and treating her. Another could be that the female reader, in the face of her cancer, finds strength in her relationship with Ratchet. They could have deep conversations about life and death, and he could be there to support her through her toughest moments, like chemotherapy sessions.