Title: Silent Stalker
Author: Richie Tankersley Cusick
Published: April 1, 1993
Publisher: Simon Pulse
Jenny Logan's summer vacation with her father suddenly became a nightmare when the predatory Sir John Worthington invited them to a replica of an ancient castle in England--and his handsome grandsons spun a web of intrigue, romance and deceit around her. Jenny is forced to battle the castle's ancient curse, which decrees that she will go mad, or die . . . or simply disappear. (fantasticfiction.co.uk)
Go batshitty, drop dead or poof into non-existence . . . that's a pretty difficult decision. But it feels like there's one too many options. Still, I'd read it to see which one Jenny takes. It's just the word "predatory" makes me a little squicky. I don't think it's being used in that way but still, ew . . .