The king of the South will make an alliance with the king of the North. This alliance would be a formal agreement that both nations are required to follow. AT: "the king of the South and the king of the North will promise to work together"
This appears to refer to a plot to kill her and those who made the alliance. This phrase may be expressed in active form. AT: "They will abandon her" (See: [[rc://en/ta/man/translate/figs-activepassive]])