there are many places to get free horror ebooks,  like desolation trilogy
I have never heard of that site. I usually just go to the library. I am a little old-fashioned and like to read real books! My local library does not have a lot, but it is a lending library, so I can get just about anything.
what genre of book would you like to read next?
I really like mystery books. I am currently reading a series with the main character of Agatha Raisin. She is an amateur detective who solves mysteries and gets into trouble.
if you could take this book with you on a deserted island, would you?
No! One read is enough. If I had to choose a book to bring on a deserted island, I would bring The Stand by Stephen King. That is more of a horror book, but it has it's mysteries, as well!
people often say stephen king's most successful period was from when he wrote carrie to misery
I like all of his books. You get the most out of them if you read the, all, as they are very interconnected. 
his writing style and approach is very popular with readers, he is a hard worker and he sets a quota to write 2000 words a day
Yes, he is a great writer. Have you ever read his non-fiction book, On Writing?
many people reviewed the book positively.  people praised how open he was about his process and his love of writing and how its important for other to write for the love of writing, too.