Before you read ふたたび赤い悪夢 (futatabi akai akumu, One More Red Nightmare, 1992) by NORIZUKI Rintarou (法月綸太郎), you need to decide whether you want to read the two earlier books in the series 雪密室 (yuki misshitsu, Snow Locked Room, 1989) and 頼子のために (Yoriko no tame ni, For Yoriko, 1990). Events and characters of both of these books are important background to this one; and Norizuki supplies readers with enough information to understand the story even if th...