Pebble Plus; Rev It Up! Books in Order
3 books by Thomas K. Adamson. Reading level: Grades 1.7–2. Lower Grades (Ages 5–8).
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. Pebble Plus; Rev It Up! (3 books by Thomas K. Adamson) lands at reading level Grades 1.7–2, 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.
Pebble Plus; Rev It Up! Reading Order
| # | Title | Reading Level | Content |
|---|---|---|---|
| 1 | Hot rods Thomas K. Adamson | Level 2 | Gentle |
| 2 | Lowriders Thomas K. Adamson | Level 1-2 | Gentle |
| 3 | Stock cars Thomas K. Adamson | Level 2 | Gentle |
All Pebble Plus; Rev It Up! Books
Questions about the Pebble Plus; Rev It Up! series
- What reading level is the Pebble Plus; Rev It Up! series?
- The Pebble Plus; Rev It Up! series by Thomas K. Adamson is at a Grades 1.7–2 reading level (average Grade 1.9). Intended for Lower Grades (Ages 5–8). There are 3 books in the series.
- What order should I read the Pebble Plus; Rev It Up! 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 Pebble Plus; Rev It Up! series appropriate for?
- The Pebble Plus; Rev It Up! series is recommended for Lower Grades (Ages 5–8). 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.