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DarkGlass Mountain Prequel Books in Order
Below you'll find the complete list of DarkGlass Mountain Prequel books in publication order. This is generally the recommended reading order for the series.
Reading order verified: March 2026
Quick Answer
What order should I read the DarkGlass Mountain Prequel series? Start with "Threshold" (1997) and follow publication order through all 2 books.
The complete DarkGlass Mountain Prequel reading order is listed below in publication sequence.
Publication Order
Threshold
1997
Beyond the Hanging Wall
1997
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