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SindingFollower

Captured Sinding, rescue him and he'll be your follower and potential husband. (Cannot form into a werewolf on his own!)

To get him to turn into a werewolf, you need to turn him by infecting him.
This mod is required to turn him into a werewolf but not required if you just want him as a human follower.
Werewolf Followers - https://www.nexusmods.com/skyrim/mods/11459/?

Location: Faldar's Tooth in a locked cell! The lock is master soo... bring a lot of lockpicks lol