Maybe a plotline where the characters discover a hidden magic that is related to the kaleidoscope concept. It could involve different aspects of magic combining in unexpected ways, like spells that create illusions based on a person's memories, which are then turned into real, tangible objects for a short time. This would add a whole new layer of mystery and excitement to the fanfic.
One interesting plotline could be Harry discovering a new and ancient form of magic that was lost for centuries. This could lead him on a journey to understand its origin and how to master it.
There might be a plotline where a group of fans of the 'Harry Potter' series create their own magical society based on the concepts in 'for love of magic fanfic'. They explore different forms of love - platonic, romantic, and love for magic itself - and how these can be used as a powerful force against dark magic.
One possible plotline could be Harry discovering a long - lost family magic that gives him the power to communicate with magical creatures in a unique way. Another could be him using family magic to unlock hidden chambers in Hogwarts that were sealed by his ancestors. Or perhaps he uses it to protect his friends from a new and powerful dark wizard by tapping into ancient family spells.
Harry Potter would most likely be one of the main characters as it's in the title related to him. He would be the central figure around which the magical kaleidoscope of events unfolds.
A plotline could involve Bellatrix using her knowledge of the Dark Arts to protect Harry from other Dark wizards who are still loyal to Voldemort. She might have to make difficult choices between her old life and her new role as Harry's protector. And there could be a sub - plot about how Bellatrix and Harry learn from each other. Harry could teach her about the value of love and friendship, while Bellatrix could teach Harry some unique magical skills that she has acquired through her years in the Dark Arts.
One interesting plotline could be Harry having unique magical abilities that are even more powerful than in the original books. For example, he might be able to control time in ways not seen before.
One interesting plotline could be Harry's adventures in the afterlife realm where he has to deal with different types of souls. Maybe he meets some souls with unfinished business and tries to help them move on.
Well, one possible interesting plotline could be Harry teaming up with the Autobots to fight a common enemy. Maybe there's a powerful Decepticon that threatens both the wizarding world and the Autobots' home planet, and Harry's magic combined with the Autobots' technology is the key to victory.
Another plotline might involve Harry forming unique alliances with other druids. They could work together to protect an ancient druidic site from dark wizards who want to use its power for evil. This would lead to some exciting battles and magical duels.
Perhaps it focuses on his reasons for becoming a thief. It could be that he was forced into it by some difficult circumstances in his life. Like he was wrongly accused of something and had no way to prove his innocence, so he turned to stealing to survive and seek revenge.