Night Whispers — Karen Sandler

Almost 140 years ago, young prospector Noah Simmons was killed in the Hoyo del Diablo of the Arizona desert. Now, after almost a century and a half of haunting his lonely cave, he watches a group of settlers arrive--including a lovely young woman...

Scientist Liz Madison would rather cross paths with the legendary ghost of Hoyo del Diablo than with the handsome, arrogant geologist Ethan Winslow. But marrying Ethan--temporarily--is the only way she can join the new BioCave experiment. In such close quarters, living as husband and wife, Liz and Ethan fight against a powerful attraction neither of them wanted. Then Liz begins to sense a strange presence with her--calling her name, moving her equipment. And when Noah appears, warning her of a dangerous force in the cave, her head and her heart argue over what to tell her new husband. Can Ethan be trusted to see the truth--and fight for the survival of their newfound happiness?