It depends on what 'diddo' means in the context of the fanfiction. If it's something that goes against the values of the original 'Harry Potter' series, like inappropriate relationships or actions, then it's not appropriate for all ages. However, if it's just a made - up, innocent concept, it might be more widely acceptable, but still needs to be evaluated carefully as fanfiction often has a different tone than the original work.
It could be about Harry Potter and Dido (assuming Dido is a character) having an adventure in the wizarding world. Maybe they are solving a mystery together, like finding a lost magical artifact or rescuing a magical creature.
In a fanfiction, Harry could be transported to the Pokemon world while on a mission for the Order of the Phoenix. There, he learns about Pokemon battles and uses his magic in unique ways to train and battle with his Pokemon team. He might also find that some Pokemon have a natural affinity for magic, and together they form an unbeatable combination.
It could be really wild. Maybe Harry uses his Patronus charm in a new and unexpected way. Instead of just driving the dementors away, he somehow makes the Patronus 'entertain' the dementors. Like the Patronus could be a stag that does acrobatic jumps and the dementors are curiously watching it, almost like they are being played with.
One common plotline is Harry's journey to become an outstanding Chaser. It might involve him facing challenges from other players, like rivalries within the team. Another plotline could be how his skills as a Chaser help Gryffindor win important matches and championships.
A plot could involve Harry forming a band with his Hogwarts friends. They play guitar - based magic music that can break through dark magic barriers. As they perform around the wizarding world, they become famous not just for their music but also for their ability to use music as a form of magic. It would be a story full of adventure and friendship.
Well, the plot could be that Harry inherits an ocarina from an old wizard. As he starts to play it, he realizes it has the power to open hidden passages in Hogwarts. He then embarks on a journey to discover what these passages lead to, all while trying to keep his newfound ability a secret from the teachers and Malfoy and his gang.
One possible plot could be that Harry discovers airsoft during a visit to the Muggle world. He becomes fascinated by it and decides to introduce it to his wizard friends at Hogwarts. They then start having friendly airsoft battles in the Forbidden Forest, using magic to enhance the game in a safe way, like creating magical shields for protection.
In a more complex plot, Harry could be part of a prophecy that involves him using the power of music from the piano to defeat Voldemort. He has to learn special musical spells and collaborate with other musical - inclined wizards and witches. Along the way, he also has to face challenges from those who think music has no place in the wizarding world and wants to stop him from using the piano as a weapon against the dark forces.
Another plotline could involve Harry being taught to play the piano by a mysterious old wizard in Hogsmeade. Through his piano - playing, he gains a new level of popularity at Hogwarts, not just as 'the boy who lived' but as a talented musician. This could lead to some jealousy from his classmates, but also new friendships with those who appreciate his music.