Shannara Chronicles (Season 1) is the TV version based on Terry Brook's second novel "Elfstones of Shannara"
If you have not had a chance to check it out I would. While the show even in the first two eps does stray from the source here and there. It looks like the showrunners are making sure that core of what the book is about is kept intact.
What has amazed me the most however is the how Allanon is shown. Given that in the first three books he is the primary guiding force. Which is a role he retains. If anything this show has expanded on the lore and has brought some clarity.
Another important element is that the show's first two eps make a few direct references to Sword of Shannara and over all to the total of the Shannara lore.
But what this show has isn't in the big details. But rather the small ones. Their are a few scenes that if you've read the book you can pretty much guess what is going to happen. if not in this ep but down the road.
If you are a fan who enjoys the books you will enjoy this. If you are a newbie you will also enjoy this and be encouraged to read the books.
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