I Will Find You by Neeka
archiveofourown.org/works/596457?view_full_work=true

Slash Derek/Stiles

Good story with some major angst and only a semi-happy ending, be warned there is the death of several major characters. Stiles is across the country when the zombie apocalypse happens and all he can think of is to find his way home. This is a story about what lengths humans will go through for those they love and the evil that can happen. Definitely a tear jerker and you find yourself becoming very involved in the story. And while I wish it had ended differently I don’t see how it could have. Do not read at work trust me hard to explain the tears around people. How do you tell them you are crying for fictional characters.