Frozen Redemption

Bolvar Fordragon is losing his power as the Lich King, and civil war has come to the Scourge. One side is those that Fordragon still controls, and the other the rebellious undead, led by Kel'thuzad, that seek to put a new Lich King on the throne. And Sapphire Menethil has not been seen for two years. No one knows whose side she is on. Sequel to Frozen Sapphire.