the original tribrid

Stiles stilinski or should I say genim mikaelson. he was bored a few years ago and decided to pretend to be a human so he did a spell that will make the whole town think that he lived their and that he is the son of the sheriff.
What will happen when their is a family reunion in beacon hills?
What happens when the pack finds out?
What happens if genim had a wife and a son that the pack didn't know about or that's what they think...

disclaimer: I do not own any characters just the plot twist!