(Post-War SSHG Severus Snape Hermione Granger story) Hermione Granger investigates a serial killer. A mystery develops within a mystery. Can Hermione unravel one mystery while investigating another. Will a new personal relationship with Severus Snape derail the whole thing? This story was inspired by DC_Fitpatrick's story The Guy with the Dragon Tattoo on ArchiveOfOurOwn. Great story featuring motorcycle Sev which apparently does it for me. Disclaimer: All Harry Potter characters are property of JK Rowling. No infringement intended