Fatal revenant

Linden Avery returns to the Land hoping to find her kidnapped son, Jeremiah, who has been healed of a mental condition that left him mute and unresponsive for years, and finds he has joined forces with Thomas Covenant, the man Linden loved and believed was dead, but the Covenant Jeremiah has befriended is somehow different from the one Linden remembers, causing her to wonder if there is something more sinister at hand than she imagined.