The Greenhouse Effect — Sally Rogers-Davidson

The Greenhouse Effect - Shipwrecked on a remote island off the coast of Tasmania, Aster Bloom is rescued by the island's lone resident, the mysterious and handsome Devon McLeod. With no way to contact the mainland Astor is forced to stay with the reclusive stranger in his creepy 19th century manor house until the monthly supply boat arrives.
Protective of the secret research he is conducting in the massive greenhouse attached to the propery, Devon is suspicious of his attractive, but unwanted visitor's appearance on the island. Curious about her reluctant savior and suspicious of his motives for keeping her on the island, Astor begins to wonder - does he really have no way of contacting the outside world, or is he keeping her there for some other, more sinister reason? Just what is hidden inside the locked trunk in the attic? What is the secret reseach that Devon is conducting in the greenhouse? And what effect will the greenhouse have on both their lives? - By the author of Spare Parts and Polymer