Hunting a Mate (Yandere Alastor x reader)

It took time to get the hang of the filthy, yearly habit. To be secluded. He felt wrong when it happened.
He was unprepared, however, for the newcomer that arrived at the hotel. He was conflicted. He wanted. T H E M.

This story is also on Archive of Our Own under SpiritofSands but I may post it more on here for a bit.
Also this story is going to get darker as it progresses, tags may be added in the future.