The setting is at an island called Bora Bora. The protagonist, or hero is a boy, Mako, who loves to spend time at the lagoon. The antagonist is Tupa, a shark, other characters in the story ar Mako's mother, grandfather, and his dog, Afa.
His grandfather told him that, Tupa has killed Mako's father and other fishermen in the lagoon. Everyone is scared of Tupa, the ghost of the lagoon. He haunts the villagers and thatmade Mako even more motivated to get revenge on Tupa.
3 fishermen died years ago because of Tupa and sadly... Your father was 1 of them.
The next day, Mako and Afa went to a close island to gather fruit for on his canoe. They arrived to the island safely, then when they were going back they saw something moving in the water. That movement of water started circling them.
Afa and Mako were being surrounded by Tupa, Since Tupa was going in a circle the boat was rocking back and forth. Mako only has 2 options, Mako could save himself or he could save Afa.
Mako risked his whole life for Afa, luckily Mako had his spear that he made. While Afa and mako are still stranded, Mako took his hand-crafted spear and aimed it at Tupa. This is his chance to get revenge, he threw the spear and hit Tupa's eyes and shoulder. Finally, Tupa died.
Everyone was safe, to make sure that Tupa was dead he tied a rope around Tupa and brought him back to shore. Everyone was also relived that Tupa was dead. Mako earned the King's reward of land and a new conoe.