Secret Snarry Swap: FIC: Immortal Claim Title: Immortal Claim Author:ladyofsd Rating: NC-17/Explicit Word count: ~16,500 Content/Warning(s): Post-Hogwarts AU, EWE, Vampire!Severus, Possessive!Severus, Auror!Harry, Biting, Claiming, World Building, Anal Sex, Frottage, Soulmates Prompter/Prompt: Prompt 20 from themightyflynn: Severus is a vampire. Not just any vampire, though, he heads an entire clan. His power is beginning to make the Ministry nervous, so they send Harry in as a negotiator. A/N: Thank you, mystery prompter, for submitting your juicy idea; I had so much fun running with it. Many thanks to the mods and their understanding ways. :) And myfirstisthefourth, you are Amazing! I’m so happy to call you a friend. *hugs* Summary: Harry needs Severus’s cooperation to solve a case, but navigating vampiric culture and Severus’s powerful allure proves more challenging than he anticipates.