Antrax, the title character is a sentient machine, that controls the city of Castledown. It is very smart and has lured the voyagers to it's awaiting maw. It needs magic to stay alive. After waking years after technology crumbled Antrax found a new power source: magic. It was built as the perfect weapon and ultimate protector. Maybe too perfect. It has outlived its masters but must still follow its orders. Protect Castledown at all costs. It is this machine that Walker knows that the strongest magic is held. But there is no way of extruding it. So he is seduced by the sentient being. Meanwhile, the Ilse Witch, now revealed as Grianne Ohmsford has captured Bek who claims to be her dead brother. He knows that the only way to save her is by using the Sword of Shannara. His only way of escaping is Truls Rohk a strange but undaunting protector. It all culminates with a conflict between the Ilse Witch and Walker Boh. But a new enemy is on his way the Morgawr.
