After a day long battle, "the two armies [rest] by the sea". Teancum and an unnamed aide then infiltrate the Lamanite camp and Teancum kills Amalickiah in his sleep. This leads to a Lamanite withdrawal and retrenchment, pausing the invasion.
Following a long battle, the two armies rested by the sea.  Teancum and an unidentified assistant infiltrated the Lamanite camp and killed Amalickiah while he slept. This triggered a withdrawal of the Lamanites, temporarily halting their advance.