SPOILER ALERT
Det Kali Mahoe, with her huge dog Hilo, part Weimaraner and part Great Dane, is challenged by a man who is obsessed with the legends of Hawaii. It begins when the body of Maya Holmes is founded hanging from the magnificent rainbow eucalyptus tree in the Polipoli Spring State Recreation area of Kula Forest Reserve. She has been asphyxiated with very fine lava dust, stuffed in her nose, mouth and lungs, after tortured, perhaps having been made to fire walk, the soles of her feet burned. She was an employee of the Center for Marine Mining and Research under the direction of Dr. Davos O'Connor. Another director in the CMMR is Byron Coolidge, working on his doctorate, and head of the Chemistry Division. Jody Phillips was another employee and her friend. Trey Carter was a student intern she had befriended. He disappears and eventually is found in a homeless camp on Oahu, dead from an overdose. There have been reports of witches in the Reserve, which adds to the question of whether the killing was a ritual.
As Kali and Capt Walter Alaka'i investigate, they must also contend with drugs on Maui. Kali becomes the victim of a break-in at her home, in which the book written by her grandmother, Pualani Pali, who was an historian with a PhD; the book, "Lore and Legend of the Hawaiian Archipelago", is stolen. The Island Market owned by George, a friend, is then fire bombed. And then Kali's hale which protects the partially completed canoe her fiance', Mike Shirai, had been making before his death is firebombed and all destroyed. Vance Sousa, a strange man who works for CMMR and refers to the myths, priests and sorcery of Hawaii frequently, but is missing, is suspected. He is covered in tattoos and witnesses said the man on the motorcycle who bombed the market was covered in tattoos.
Maya's brother's, Charlie, home is ransacked and he has disappeared. He had found Maya's computer in a jigsaw puzzle box in his room. It is encrypted so the strange coding found in not able to be read at first. Jodie comes to the police station and reports what Maya had been working on. The men of the CMMR, and those with advanced degrees looked with distain at the others. Maya had been working on a new method of mining that would have revolutionized the industry and would have been worth a lot of money. Kali and Walter believe that CMMR is the starting point for the drug business and other illegal activity...the reason for Maya's death.
They will follow Vance, find him at the Reserve dancing naked, drugged and screaming that he is Kane and will overcome Kali, who is a priestess. He is shot and subdued by Kali, Walter and Officer Hara. They find Charlie there, hurt, and he warns of a cave, and tells them not to go into it. The only place he could have been referring to that is close is a lava tube. When they find it and enter, Kali and Charlie find the meth lab with Byron Coolidge manufacturing meth. It is active and he threatens to set it off. When he runs toward the rear of the tube and upsets the table as he goes, Kali and Walter run back to the entrance barely making it as the lab explodes, the tube collapsing. They are started down the mountain, in the sheeting rain when they encounter Jodie Phillips coming up the road. She tries to get away but runs into a mudslide. She helped to kill Maya. They had all planned to steal Maya's work. They needed to find her computer and the background work before an article was published in a professional periodical. She had been abducted and tortured for the information but had not revealed its location before they killed her. O'Connor is apprehended.
Kali loses much in this installment. Her grandmother's book, which was the first one, was destroyed by Sousa, along with the canoe. She and Walter rig a raft and take the burned canoe out to sea to sink. She sees herself moving on from this point, and has begun thinking of her neighbor, the artist Icelandic Elvar Ellinsson as more than just a friend. George's market will be restored with better storage and Kali will perform a ceremony for the opening. During the investigation, in Oahu, she sees Makena, Mike Shirai's daughter, who has fallen into deep drug use and prostitution. She realizes she is unable to help her anymore.