Alma 51:31 - 51:37
Alma 51: 31 But behold he met with a disappointment by being repulsed by Teancum and his men, for they were great warriors; for every man of Teancum did exceed the Lamanites in their strength and in their skill of war, insomuch that they did gain advantage over the Lamanites.
Amalickiah was stopped in his insurgency efforts by Teancum and his forces who were vastly superior to the Lamanite in strength and skills of warfare. It was soon evident that they were going to inflicted great damage as the battles continued.
Alma 51: 32 And it came to pass that they did harass them, insomuch that they did slay them even until it was dark. And it came to pass that Teancum and his men did pitch their tents in the borders of the land Bountiful; and Amalickiah did pitch his tents in the borders on the beach by the seashore, and after this manner were they driven.
As night fell, both armies set up their camps for the night. Teancum had his camp on the borders of the land Bountiful so as to place himself between the Lamanites who had been driven to the seashore and the land Bountiful. Both armies were very tired.
Alma 51: 33 And it came to pass that when the night had come, Teancum and his servant stole forth and went out by night, and went into the camp of Amalickiah; and behold, sleep had overpowered them because of their much fatigue, which was caused by the labors and heat of the day.
However, Teancum did not sleep. With one of his subordinates, he sneaked into the camp of the Lamanites who were fast asleep do to their efforts that day.
Alma 51: 34 And it came to pass that Teancum stole privily into the tent of the king, and put a javelin to his heart; and he did cause the death of the king immediately that he did not awake his servants.
Teancum then found the tent of Amalickiah and while he was asleep, Teancum drove a javelin into his heart. Amalickiah died without making a sound.
Alma 51: 35 And he returned again privily to his own camp, and behold, his men were asleep, and he awoke them and told them all the things that he had done.
Teancum returned to his camp and told his fighters what he had done and to be ready for an attacked by the Lamanites.
Alma 51: 36 And he caused that his armies should stand in readiness, lest the Lamanites had awakened and should come upon them.
He wanted his men ready in case the Lamanites wanted to attack in reprisal.
Alma 51: 37 And thus endeth the twenty and fifth year of the reign of the judges over the people of Nephi; and thus endeth the days of Amalickiah.
This ended the 25th year and Amalickiah was dead.