I really like the fanfiction 'In Moody's Shoes'. It takes the reader on a journey through Moody's eyes. You get to experience his paranoia, his skills as a wizard, and his complex relationship with the Order of the Phoenix. It adds a lot of depth to his character and is a great exploration for any 'Harry Potter' fan interested in Mad - Eye Moody.
The mystery surrounding Mad - Eye Moody makes fanfiction appealing. In the original series, he had a lot of secrets. Fanfiction allows us to explore those secrets further. For example, we can imagine what he was really thinking when he was teaching at Hogwarts.
Mistrust and suspicion is also a frequent theme. Given Moody's nature of being always on guard and Draco's family background, there are often stories where they initially don't trust each other but gradually learn to see past their prejudices. This can create a lot of tension and drama in the fan fictions.
There's 'A Change of Perspective' where the author explores what would happen if Draco Malfoy had to be mentored by Mad - Eye Moody. It's a really cool take on their relationship and how they could influence each other's growth in the wizarding world.
Harry would likely be more gruff and less trusting. Growing up with Moody, who was always on guard, Harry would have learned to be more cynical. He might not be as quick to make friends as he was in the original story.
Perhaps Moody, being a very experienced Auror, trains Harry in some dark magic defense techniques that are not taught at Hogwarts. This gives Harry an edge in fighting the dark forces but also makes the Hogwarts faculty a bit wary of him. He could then be in a situation where he has to prove that his knowledge is for good and not for dark purposes.
I'm not sure specifically as there could be many 'moody book stories'. It might be a story that has a strong emotional undertone, perhaps with characters experiencing complex moods like melancholy, anger, or joy in a very vivid way.
Characteristics include a focus on the senses. In a moody and sexy story, you'll often find detailed descriptions of things like the touch of a hand on a bare shoulder, the smell of a particular perfume, or the sound of a lover's whisper. The mood is usually set by elements like the time of day (maybe a late - night encounter), the location (a secluded beach perhaps), and the characters' emotions which are often a mix of longing, desire, and a bit of melancholy.