Well, perhaps Merlin discovers a hidden magic in the tower that is key to saving Camelot. He might have to face some dark spirits lurking there while he tries to master this new magic.
In this fanfiction, the plot could involve Merlin using the tower as a secret place to train an apprentice. He has to keep it hidden from the court and deal with the challenges of teaching magic in secrecy.
Maybe Merlin is trapped in the tower by an evil sorcerer. He then has to use his wits and magic to break free. Along the way, he uncovers secrets about the tower's origin and its connection to an ancient power that could change the fate of the kingdom. He'd have to battle enchanted creatures and solve riddles to escape.
Arthur could visit Merlin in the tower. He might be curious about what Merlin does in his secret place or he could be in need of Merlin's help and follows him there.
One possible plot could be that Merlin discovers a hidden dragon lair where he is accepted as one of their own. He learns dragon magic and uses it to protect Camelot in ways he couldn't before. Maybe he even rides the dragons into battle against powerful dark forces.
Well, one possible plot could be that Merlin learns more ancient magic from the druids. He might discover new ways to use his powers for the good of Camelot while living among them. Maybe he'll also find a sense of belonging that he didn't fully have in Camelot.
Well, perhaps Merlin discovers long - lost spells in the tower. It could be a place full of ancient magic that he starts to explore and learn from. Maybe he even finds a magical creature that has been guarding the tower for centuries.
It could be about a girl trapped in a tower and her journey to escape. Maybe she discovers hidden powers within the tower or meets mysterious characters that help or hinder her escape.
It could be a story where Merlin and Gwen attend a royal ball. Merlin, who is usually shy about his dancing skills, decides to ask Gwen for a dance. As they dance, they share a special moment and start to realize their feelings for each other more deeply.
One possible plot could be Merlin hiding her true identity from Meliodas as he grows up. She could be watching over him from afar, secretly guiding his actions and protecting him from afar while he is on his adventures.
Well, perhaps it could be about Merlin using his ancient and powerful magic to train Harry in combat skills. Maybe he teaches Harry spells that have been long forgotten.
In a 'Merlin and Arthur at Hogwarts' fanfiction, the story could start with Merlin accidentally casting a spell that sends them both to Hogwarts. At Hogwarts, Arthur is amazed by the magical creatures and the Quidditch games. Merlin tries to blend in but his unique abilities make it difficult. They both get caught up in a mystery within the school, like a hidden chamber that holds a powerful and ancient magic. As they explore, they discover that their fates are somehow linked to the history of Hogwarts, and they must use their combined skills - Arthur's leadership and Merlin's magic - to solve the mystery and find a way back to their own world.
Well, it could start with Merlin finding Freya in a difficult situation. Maybe she's being chased by some dark forces. Merlin uses his magic to save her and in that moment of relief and gratitude, they share a kiss. It could be a very tender and innocent kiss, filled with the start of new feelings between them.