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Mysteries of Trash and Treasure Books in Order
Below you'll find the complete list of Mysteries of Trash and Treasure books in publication order. This is generally the recommended reading order for the series.
Reading order verified: April 2026
Quick Answer
What order should I read the Mysteries of Trash and Treasure series? Start with "The Secret Letters" (2022) and follow publication order through all 3 books.
The complete Mysteries of Trash and Treasure reading order is listed below in publication sequence.
Publication Order
The Secret Letters
2022
The Ghostly Photos
2023
The Stolen Key
2024
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