Frostmourne was the final battle between Prince Arthas Menethil and the dreadlord, Mal'Ganis. It was the climax of Arthas' pursuit of the dreadlord in his quest for vengeance against Mal'Ganis' acts against the people of Lordaeron. It would see Arthas taking up the accursed runeblade, Frostmourne at the expense of his own soul and drive his cold, hungry, and exhausted forces to certain death while using the cursed sword's power to vanquish Mal'Ganis' forces and eventually the dreadlord himself. While Arthas was in his search for the runeblade, Captain Falric bravely defended the Alliance base.