Good plot, not so much spelling or grammar...
I picked up this story because Draco Malfoy has *always* been one of my absolute favorite Harry Potter characters, and I was always upset we didn't see more of him. I like how you introduce his parents with more personality than the books or movies show, because we don't get to see them often. I love finding fanfictions like this because they're so full of life, but if you take constructive criticism, I'll say where I thought things could go further and how I think the grammar and punctuation could improve so that more people will read this amazing book!
Read the story now
One thing that really stood out to me is that every sentence ends in a period. However, when writing, that's not always needed. You can end the sentence in a question mark, exclamation point or a period, but after that you don't need to add another punctuation.
Another is that when adding quotation marks, if you need to add a space, add if before, not after, you put the quotation mark down. For example:
" This will split up your writing and make the paragraphs a little strange ".
"But adding a space beforehand will ensure it works out fine!"
I don't really notice any capitalization problems, but a couple spots could've had commas or something.
As for where the story could've gone further, in the first scene with Voldemort you could've given more context on how he knew about the books. And when they first see Draco's sister, I'd love it if you gave just a tad more description.
No hate, just trying to help! I saw two other reviews that said the story had bad grammar, so I thought I could help. Thanks for reading my review and keep up your amazing writing journey!