A Full Arsenal

The climatic confrontation explodes into chaos as Aislin, soaked and defiant, conducts a final stand against the Beast.  After confronting it via ouija board, she arms herself with a missile launcher and storms Haidesville just as the sky bleeds red and buildings erupt into flames.  When the Beast attacks, brutally maiming both Sara and Ty, Aislin blasts it through a wall with a rocket.
But even that isn't enough.  The Beast reforms itself from the ashes and slashes Aislin down with invisible claws.  Just as It prepares to end her, Aislin channels her heritage - the curse that passed from her mother, one of the only survivors of Havenport.  She pulls out her creation that brought It back and discovers its true power.  As the skies clear and Haidesville is saved, Aislin walks off into the dawn, leaving the monster - and her nightmares - in ashes.

Tone:  Silent Hill or The Ring