Aloha Reef

Sometimes, Kaia Oana thinks her dolphins are more humane than humans. As a mammal intelligence researcher, Kaia has learned a thing or two about the goodness and intelligence of dolphins - and as a natural scientist in close proximity to weapons developers, she's learned a thing or two about humans as well. When a tourist catamaran explodes off the coast of the Hawaiian island of Kauai, Kaia and her trained dolphin, Nani, rush to aid the search and rescue effort. After hours of searching, an exhausted Kaia is pulled from the water by Lieutenant Commander Jesse Matthews of the US Navy.

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 for 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. 

Sometimes life's most precious treasure lies at Dangerous Depths. Leia ditched a promising medical career to settle on a secluded island of Hawaii. She ditched Bane, too, and he's come to the island to find out why. He's also in search of a fortune rumored to lie offshore. But an act of sabotage that pushes Bane closer to Leia plunges them both into a tangle of emotion - just as a series of threatening events grip the island.