Secrets of the Unexplained Books in Order
3 books by Gary L. Blackwood. Reading level: Grades 7.3–7.9. Upper Grades (Ages 12+).
Series books grow with readers — but that's also the trap. Most series start at one reading level and one content intensity and drift upward over the course of the run. Secrets of the Unexplained (3 books by Gary L. Blackwood) lands at reading level Grades 7.3–7.9, with average content intensity 1/5. Intensity stays consistent across the series — a kid who can handle the first book can generally handle the rest.
The reading-order table below lists every book with per-volume reading level and intensity badges so you can spot any escalation before it catches your reader off guard. For a deeper dive into how we score text difficulty vs. emotional weight separately — and why series readers especially benefit from that split — see our methodology page.
Content Intensity Across the Series
ConsistentContent stays at a steady intensity level throughout the series.
Secrets of the Unexplained Reading Order
| # | Title | Reading Level | Content |
|---|---|---|---|
| 1 | Extraordinary events and oddball occurrences Gary L. Blackwood | Level 7-8 | Gentle |
| 2 | Long-ago lives Gary L. Blackwood | Level 7-8 | Gentle |
| 3 | Paranormal powers Gary L. Blackwood | Level 7-8 | Gentle |
All Secrets of the Unexplained Books
Extraordinary events and oddball occurrences
Gary L. Blackwood
Extraordinary events and oddball occurrences
Gary L. Blackwood
Long-ago lives
Gary L. Blackwood
Long-ago lives
Gary L. Blackwood
Paranormal powers
Gary L. Blackwood
Paranormal powers
Gary L. Blackwood
Questions about the Secrets of the Unexplained series
- What reading level is the Secrets of the Unexplained series?
- The Secrets of the Unexplained series by Gary L. Blackwood is at a Grades 7.3–7.9 reading level (average Grade 7.6). Intended for Upper Grades (Ages 12+). There are 3 books in the series.
- What order should I read the Secrets of the Unexplained books?
- The reading-order table above lists all 3 books with per-volume reading level and intensity ratings. Start with book 1 and read in publication order unless the table indicates a different recommended order for newer readers.
- What age is the Secrets of the Unexplained series appropriate for?
- The Secrets of the Unexplained series is recommended for Upper Grades (Ages 12+). The average content intensity is 1/5. Check the intensity trajectory above to see whether content gets heavier across the series — if it does, sensitive readers may want to stop earlier in the run.