Perhaps there are stories where Merlin's secret sharing has unintended consequences. For example, the knowledge he shares spreads too far and causes chaos in Camelot. This could then be about how Merlin has to work to fix the situation, showing his growth and resourcefulness as a character.
One interesting story could be about Merlin sharing his magic secrets with a newfound friend in the fanfiction. This might lead to them going on adventures together, using magic in unique ways to solve problems.
In some 'merlin the secret sharer fanfiction', there could be a story where Merlin reveals his secrets to an enemy in order to gain their trust and ultimately turn them to his side. This would involve a lot of drama and character development as the enemy grapples with this new knowledge.
Chapter 746, "They Are Each Other's", is the clearest early answer because it turns Fang Wenzhe's situation into a concrete plot event. The chapter turns that into something concrete by moving from The fervor in that young man's eyes was something she would never...
Chapter 862, "A Penny Won't Buy Loss, Won't Buy Deception", is the clearest early answer because it turns Buy Loss's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Right after, the trending searches started.
Chapter 588, "Looking like this, he must be a male model in a bar!", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. The chapter gives readers a real answer by opening on However, what they didn't expect was that Zhao Lang had actually...
Chapter 746, "They Are Each Other's", is the clearest early answer because it turns Legal University's situation into a concrete plot event. The chapter gives readers a real answer by opening on The fervor in that young man's eyes was something she would never...
Chapter 691, "Sorry, You Don't Deserve It", is the clearest early answer because it turns United States's situation into a concrete plot event. A useful checkpoint is the way the scene starts with As soon as Jiang Li was mentioned, Zhao Lang suddenly became...
Chapter 941, "In Which Year Did the River Moon First Shine on People [Extra · River Moon Edition]", is the clearest early answer because it turns Shine's situation into a concrete plot event.
Chapter 716, "Cook a Special Meal", is the clearest early answer because it turns Wen Jiaojiao's situation into a concrete plot event.
A practical answer is Chapter 10, because it turns the idea into a concrete scene. The chapter opens with Qiao's shocked face struggle to recover, Lin Manru also tasted for the..., adds pressure through The young man stood motionless, his gaze fixed on the girl below, and..., and ends on Who was.
Chapter 751, "Even if both perish, he must pay the price!", is the clearest early answer because it turns Shu Yan's situation into a concrete plot event. Early on, She cried out for heaven and earth, but her beloved was just.... By the end, Why did they have to take Shu Yan away from him?!.
Chapter 896, "Are You a Male Model?", is the clearest early answer because it turns Chang Song's situation into a concrete plot event. The chapter gives readers a real answer by opening on Upon hearing this, Wen Jiaojiao seemed to think of something and...