An assassin by the name of Raiyn, yet goes by Thunderstorm, is assigned a mission to take the life of Riley Spencer, an immortal whom has been alive for over a thousand years. Nobody knows he is immortal, of course. TW! descriptions of death, Suicidal Thoughts, Implied murder, and topics related to self-harm. There's also foul language. ME AND MY FRIEND WROTE THIS BOOK! CHARACTERS BELONG TO US! https://archiveofourown.org/works/56816185 (this is the AO3 Version!)