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Mr. Penumbra's 24-Hour Bookstore Books in Order
Below you'll find the complete list of Mr. Penumbra's 24-Hour Bookstore 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 Mr. Penumbra's 24-Hour Bookstore series? Start with "Mr. Penumbra's 24-Hour Bookstore" (2012) and follow publication order through all 3 books.
The complete Mr. Penumbra's 24-Hour Bookstore reading order is listed below in publication sequence.
Publication Order
Mr. Penumbra's 24-Hour Bookstore
2012
Ajax Penumbra: 1969
2012
Moonbound
2024
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