Page-turning romantic suspense set amid the gorgeous beauty of Hawaii and the impending danger of a volcano. 
A brainy—and perpetually single—volcanologist, Annie Tagama works alongside her father at Hawaii Volcanoes National Park. But despite her pedigree, Annie has lost her passion or volcanology. She's quietly grieving the mysterious loss of her brother in the Middle East.
When Annie discovers that her brother might still be alive—and in trouble—she shakes off her malaise and joins forces with Mano Oana, the unnervingly handsome family friend she had always blamed for her brother's death.
As Annie and Mano investigate—and find that they have a lot more in common than tragedy—an evil force gathers strength on the main island. An ancient cult has reemerged—and Annie's little sister is somehow involved. As the old religion bubbles to the surface like lava, the old practices are not far behind . . . including human sacrifice.
Annie and Mano are desperate to find her brother and save her family from destruction before the ancient evil smothers them all in an earth-shattering eruption.
This full-length romantic suspense can be read as a standalone, but is also part of the Aloha Reef Series.

• Book one: Distant Echoes
• Book two: Black Sands
• Book three: Dangerous Depths
• Book four: Midnight Sea

Includes discussion questions.
"Wow! Reading Colleen Coble's Black Sands is like taking a romantic excursion to Hawaii's rugged shoreline. Coble brings the setting to life, draws engaging characters, and spins an intricate web of intrigue." --Denise Hunter, author of The Convenient Groom and Summer by the Tides 
"Filled with the spirit of aloha and page-turning twists and turns, Black Sands is romantic suspense at its thrilling finest. A can't-put-down read!" --Linda Windsor, award-winning author of Paper Moon 
"No one take you to a setting like Colleen Coble, and what better place to be than the Black Sands of Hawaii? Reading the book was like a cool dip in the balmy ocean—under the lurking shadow of a volcano in shark-infested waters. Enjoy, but beware!" --Kristin Billerbeck, author of The Theory of Happily Ever After