Tulap adalah raksasa pemangsa. Kerjanya ke luar-masuk desa untuk mencari manusia yang bisa dimakan. Putri Monondeaga, istri Abo Mamongkuroit, pun jadi korban. Dia ditangkap Tulap! Tentu Abo Mamongkuroit tak terima. Dia lalu mendatangi Tulap dan menantangnya untuk duel adu betis. Apakah Abo Mamongkuroit bisa memenangkan duel itu? Bukankah betis manusia amat kecil dibandingkan raksasa?

Tulap was a man-eater giant. All that he did was wandering around villages to find his preys. Putri Monondeaga, Abo Mamongkuroit’s wife, was to be his next victim. Tulap captured him! Abo Mamongkuroit surely could not let this happen, so he came to see Tulap in his place. He challenged the giant in a calf-duel. Would Abo Mamongkuroit win the duel? Weren’t men’s calves petite compared to those of giant?