Murder in Paradise (Sweet Valley High Super Thrillers #6) by Francine Pascal - Vintage Paperback

It's ten o'clock... Do you know where your mother is?

Jessica and Elizabeth Wakefield are living it up on a mother-daughter retreat at Paradise Spa, where their biggest worry is whether to go for a cucumber facial or a splash in the waterfall. And with so many cute guys on staff, the girls decide that what their boyfriends back home don't know won't hurt them!

Then Jessica and Lila Fowler go for a late-night swim and find a dead body in the steam bath! The manager insists the death is a freak accident, but when Alice Wakefield disappears, Elizabeth and Jessica are terrified there's a murderer on the loose. Desperate to find their mother, the twins set a deadly trap -- with Elizabeth as the bait!