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The Obsidian Cube — by Mark Mulle
The Obsidian Cube Series in Order (3 Books)
| Order | Book | Date | Rating | |
|---|---|---|---|---|
| 1 | An Unknown Past | Apr-2015 | 0 |  |
| 2 | The Skeleton King | Apr-2015 | 0 | |
| 3 | The Mystery Revealed | Apr-2015 | 0 | |
Frequently Asked Questions (FAQ)
There are 3 books in The Obsidian Cube series.
The Obsidian Cube series does not have a new book coming out soon. The latest book, The Mystery Revealed (Book 3), was published in April 2015.
The first book in The Obsidian Cube series, An Unknown Past, was published in April 2015.
The Obsidian Cube series primarily falls into the Action Adventure genre. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.