This book is the first novel in a Christian suspense and romance series called The Aloha Reef series, as it is set in Hawaii, and, in addition to that, the books all have at least some connection to the sea, shown either through diving, normal swimming, or boating. Anyhow, in this book, we are introduced to the Oana family, particularly to the sister in the family, Kaia who works with her friend Nani, a rescue dolphin, as well as a few others from Nani's pod, trying to establish better dolphin-human communication. I thought the book was well-written and entertaining, and the twists and turns of the plot due to the element of suspense/mystery were quite fun, and I even eventually guessed who the villain was before it was fully revealed, which rarely happens, so I was pleased with myself about that. In any case, I also loved the characters in the book and thought they were portrayed well. It has certainly earned its place on my favorites' list.