"Teen Wolf" season 3B, episode 19 airs this Monday and we have the latest spoilers and teaser trailer here! Will we find out if Stiles can remain human or becomes a nogitsune?

According to IB Times, we learned in the last episode of "Teen Wolf" season 3B that Stiles (Dylan O'Brien) may not be human, but a nogitsune. The website reports that Stiles is doing everything he can to fight the possession of the nogitsune living inside him to save his friends, but eventually he'll grow weaker and the kitsune will grow stronger. Hopefully he won't become an enemy in "Teen Wolf" season 3B!

The official synopsis for "Teen Wolf" season 3B, episode 19 reads: "Scott and the others try to prevent a disaster; Lydia and Allison seek out an unlikely teacher."

Watch the teaser trailer for Monday's episode below; it looks like things are going to get really intense for our favorite characters!

Don't forget to tune in to "Teen Wolf" on MTV, Feb. 17 at 10 p.m. ET.

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