In an under-water cave nearby, there lived a mighty giantess of the sea, whose name was Phisua Samutr, or literally Ocean Butterfly. At that particular moment, she had come up to catch some fish for her supper. When she heard enchanting music coming from the shore, she was unable to resist the spell too. She crept stealthily to the beach, trying to find out where the music came from. Seeing the handsome human prince on the shore, she fell passionately in love with him at first sight. With her mighty force, the giantess picked him up in her hand. Then she plunged into the water and headed for her home Phra Aphai Mani merely fainted. When he recovered, he found himself lying in large There was a beautiful a cave. young woman sitting beside him. However, Phra Aphai Mani knew that it was the giantess reduced in size and disguised as a woman. Phisua Samutr tried all her charms on the prince, but failed. Pra Aphai Mani kept trying to escape for many times. Driven beyond her patience, Phisua Samutr became angry and threatened to kill him, so he agreed to be her husband, under the condition that she would swear never to eat him. The giantess solemnly swore. So the defenseless prince took her as his wife. A year had gone by when the ocean giantess gave birth to a son who looked like a normal human child. They named him Sin Samutr, meaning"Treasure of the ocean." When the child grew up, he was handsome like his father, and strong like his mother