Well, often in 'Dark Discoveries' fanfic, there are revelations about the Dark Arts that the Hogwarts curriculum doesn't touch on. It could be about the existence of secret Dark Arts textbooks that hold knowledge so dangerous it was banned centuries ago. There may also be dark discoveries related to certain characters' family histories. For instance, a character might find out that their family had a much darker past in the Dark Arts than they ever knew, which could lead to inner conflicts and new storylines.
However, there could also be new characters introduced. Maybe a mysterious new student who has a connection to the dark side of magic. This character could be a catalyst for the 'dark discoveries' that the story is centered around. They could bring new knowledge or powers that the other characters have never seen before.
One interesting plotline could be the exploration of dark magic in a new and unexpected way. Maybe the characters discover a hidden branch of dark magic that has been long forgotten. For example, a spell that can manipulate time in a very dangerous and unpredictable manner.
One popular 'Dark Discoveries' Harry Potter fanfic is 'The Darkened Path'. It delves into the discovery of a long - lost dark magic prophecy that sets Harry on a new and dangerous adventure. Another is 'Shadows of the Forbidden', which focuses on the discovery of a hidden area in the Forbidden Forest filled with dark creatures and magic.
One interesting discovery in Jacob Black x Harry Potter fanfic could be the unique blend of the two magical worlds. The werewolf lore from the Twilight series (Jacob Black's world) combined with the wizardry of Harry Potter can lead to some really cool plot twists. For example, how would the Hogwarts students react to a werewolf like Jacob? It could create a whole new set of challenges and friendships within the story.
One interesting plot could be the discovery of long - hidden dark magic spells within Hogwarts. Maybe a character stumbles upon a secret chamber filled with forbidden knowledge.
Harry Potter himself is often a main character. Since he has a connection to Voldemort, he's likely to be involved in any dark discoveries related to the Dark Lord.
One interesting 'dark discoveries fanfic' story could be about a hidden underground society where dark secrets are revealed through a character's accidental discovery. Maybe it involves a group of people with special powers who have been living in secrecy for centuries.
One discovery could be the cultural clash. Jacob comes from a different kind of 'creature' culture compared to the wizards in Harry Potter. His werewolf pack has its own rules and traditions. In a fanfic, seeing how these interact with the strict hierarchical system in Hogwarts or the Ministry of Magic can be really interesting.
You need to develop complex characters. They should have their own secrets and motives related to the dark discovery. For instance, a character who is desperate to keep the discovery a secret because it could expose his own dark past. Also, build up the suspense gradually. Don't reveal everything at once. Let the readers be on the edge of their seats as the discovery unfolds bit by bit.