Detective Team KZ Case Notes The Cut Page Knows The Red Mask Knows The Tanabata Princess Knows The Real Halloween Knows The Idol Prince Knows The School Urban Legend Knows The Convenience Store Screen Knows The Black Classroom Knows The Falling in Love Library Knows The Missing Black Cat Knows The School Shadow Boss Knows The School Gate White Witch Knows The Cursed Love Story Knows These are the 13 books. I was hooked on these when I was in elementary school and read them all! So there are some scratches and stains, please consider this before purchasing. They're super interesting! Highly recommended! The spines have faded because I kept them in a sunny place. I'd like to sell them as a set if possible, but I'll consider selling them individually! Price negotiations are also welcome, so feel free to ask!