During those times, the people of the place as in other parts of the country, were in tribal feud. Kabu Angaw, humorous as he was, had enemies too. The Kabu with a small army fought with another army from the east. At first the Kabu army was on the offensive. They drove their adversaries to the east on places which are now Alinaay, Sisim, Gabur and Baguingao. When Kabu Angaw and his companion reached Alinaay, they tried to pursue the people to side with them in the conflict and join them into the fight. The people of Alinaay rejected for they chose to be left in peace. The fight went on. The army from the east being more familiar with the terrain of that part of the town posted spies and informers in strategic places on the hill and mountains. There was a different trail then. Kabu Angaw and his army became defensive because of the strategy that the other army employed. The place where spies and informers were posted came to be known as pagsisiiman and the people who inhabited this place were called agsisiim meaning spying. With the passing of years, the word agsisiim was corrupted into SISIM, a name of the place bears up to the present time.
Many men died after days of fighting, Kabu Angaw himself died but nobody knew when and where. Most of the casualties died at a foot of the hill of what is now Gabur whose literal meaning is covered and whose remains were covered there en masse.