Swimming Through Sick Lullabies - Larry Stylinson
22 parts Complete Louis has a normal student life, well as normal as possible with a beta in a werewolf pack as boyfriend. But then a mysterious creature decides to enter their territory, terrorizing the village and playing with the werewolf pack. And what's up with all those head aches Louis gets? In between all the fuss and danger, Zayn finds the time to pine after Liam.
Or, the one where Harry is Louis' werewolf boyfriend and mysterious things tend to happen a lot.