Allanon tells him that they seek to gain information about how to return Paranor to the world from Cogline, who had previously been a Druid.
The Druid of Shannara takes off where The Scions of Shannara left off focusing on the story of Walker Boh as he attempts to fulfill the task given to him by the shade of Allanon, to return the Druid castle of Paranor to the Four Lands.