The 'trouble with imps' in a Harry Potter fanfic might also be about how difficult it is to control or get rid of them. Imps are not as powerful as some other magical creatures but they are very tenacious. If they've infested a certain area of Hogwarts, like the Forbidden Forest or an old, unused classroom, it would be a headache for the teachers or the caretaker, Filch. They might try different spells to banish the imps, but the imps keep coming back, causing continuous trouble.
As of now, 'Relentless' isn't the last one. The author could potentially come up with more stories about Drizzt based on their creativity and inspiration.
Modern poetry was a form of poetry that pursued freedom, conciseness, and expressed profound thoughts. The relentless pursuit of modern poetry required the poet to avoid using overly lengthy or cumbersome language expressions and pursue a concise and clear style when expressing thoughts and emotions. At the same time, the poet had to constantly explore new poetic forms and techniques to express his thoughts and feelings. When creating modern poems, the poet should also pay attention to the artistry and emotion of the poem so that it can attract the attention of the readers and resonate with them. The relentless pursuit of modern poetry requires the poet to constantly strive and explore in the aspects of thought, emotion and art to create better modern poetry works.
Well, 'Relentless' as a Drizzt novel probably focuses on Drizzt's unwavering determination. Maybe he's facing some great threats or challenges. It could be that he has to fight against powerful enemies that are out to get him because of his different beliefs compared to the other drow. Or perhaps it's about his inner struggle to stay true to his moral code in a world full of chaos and evil.
Another aspect is the exploration of relationships. Fanfiction often dives deeper into the relationships between characters. In 'relentless twilight fanfiction', we might see more complex dynamics between the Cullens and the other vampires, or how the relationships between the humans in Forks are affected by the presence of the supernatural.