The Crystal Cavern
A classic/continuing classic novel by Patricia Z. Ryan
Rated R per the author’s statement
Cover art by the author
Interior art by Judy Ley, Shirley Leonard, and the author.
Vincent and Catherine visit the Crystal Cavern. The story is complete with bathing pool nightmares about bats, and advances from Elliot, dreams about sunny glades, an elegant dinner, and semi-explicit sex.
Author's statement of rating: "Though this publication contains no explicit sexual material, it does deal with adult themes and situations that the series did not."