One key element is the clash of their personalities. Sherlock is highly logical and methodical, while Lupin is more of a charming trickster. Their different ways of approaching problems make for interesting interactions. Another element is the mystery aspect. Usually, they are involved in solving some complex cases together. And of course, their relationship development, whether it's from being rivals to allies or something more complex.
One great 'Sherlock x Lupin' fanfic is 'The Meeting of Minds'. It beautifully weaves the deductive skills of Sherlock with the cunning nature of Lupin. Another interesting one could be 'Sherlock and Lupin: Unlikely Allies' which shows their unique relationship development. There's also 'In the Shadows of Baker Street' where their adventures together are quite thrilling.
The key elements could include maintaining the personalities and characteristics of the Sherlock and Doctor Who characters. Also, a unique and engaging plot that makes sense within the context of both shows. Maybe some time travel or a crime that defies normal logic.
A plot could involve a case where a series of seemingly impossible crimes are being committed. Arsene Lupin is suspected by the police, but he claims innocence and enlists the help of Sherlock Holmes to clear his name. Along the way, they discover that there is a much larger conspiracy at play that threatens the whole city.
Holmes' attention to detail and methodical thinking can seem rigid compared to Lupin's more fluid and spontaneous nature. However, Lupin could learn from Holmes' discipline, and Holmes could be inspired by Lupin's creativity. For example, in a fanfic, when investigating a crime scene in a grand mansion, Holmes would analyze every speck of dust, while Lupin might notice the strange behavior of the servants more quickly. Together, they would cover all aspects of the mystery.
One key element is the exploration of Remus's dual nature. Since he's a werewolf, it often plays a big role in how he interacts with his mate. For example, in some fanfictions, his mate has to deal with his transformations.
One more element could be the way the fanfiction alters the existing storylines from the original series. Maybe fem Harry has a different role in the fight against Voldemort because of her relationship with Remus. This can lead to new and exciting plot developments that keep readers engaged.
The key elements often include a mystery that occurs during the Christmas season. For example, a theft related to Christmas presents or a valuable Christmas - related item like a star on the tree or a special gift. There is also Holmes' deductive reasoning. He uses his skills to analyze the crime scene, like looking at footprints in the snow or small clues such as pieces of fabric or marks on the floor. Another element is the Victorian Christmas setting, with snow - covered streets, warm hearths, and Christmas markets in the background. And of course, the resolution which often has a touch of Christmas spirit, like forgiveness or second chances for the culprit.
Intelligence is a key element. Holmes is attracted to women who are as smart as he is, like Irene Adler. Their mental battles and mutual respect form part of the love story. Another element is mystery. The women in his love stories often have their own secrets and pasts, which draw Holmes in. For example, Mary Morstan had her own mystery regarding her father.
One key element is his remarkable deductive ability. Another is his residence at 221B Baker Street. And of course, his friendship with Dr. Watson.
Intelligence is a key element. Both Hermione and Sherlock are extremely intelligent characters. In fanfiction, their shared intellectual connection often serves as the foundation for their romantic relationship. They can have deep conversations and understand each other's thought processes.