Pebble Plus; Under the Sea (Capstone) Books in Order
6 books by Carol K. Lindeen. Reading level: Grades 1.4–2.3. 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; Under the Sea (Capstone) (6 books by Carol K. Lindeen) lands at reading level Grades 1.4–2.3, with average content intensity 1.5/5.
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
VariesContent intensity ranges from Gentle to Intense across the series.
Pebble Plus; Under the Sea (Capstone) Reading Order
| # | Title | Reading Level | Content |
|---|---|---|---|
| 1 | Clown Fish Carol K. Lindeen | Level 1-2 | Gentle |
| 2 | Corals Carol K. Lindeen | Level 2 | Gentle |
| 3 | Jellyfish Carol K. Lindeen | Level 2-3 | Intense |
| 4 | Octopuses Carol K. Lindeen | Level 1-2 | Gentle |
| 5 | Sea horses Carol K. Lindeen | Level 1-2 | Gentle |
| 6 | Sharks Carol K. Lindeen | Level 1-2 | Gentle |
All Pebble Plus; Under the Sea (Capstone) Books
Clown Fish
Carol K. Lindeen
Clown Fish
Carol K. Lindeen
Corals
Carol K. Lindeen
Corals
Carol K. Lindeen
Jellyfish
Carol K. Lindeen
Jellyfish
Carol K. Lindeen
Octopuses
Carol K. Lindeen
Octopuses
Carol K. Lindeen
Sea horses
Carol K. Lindeen
Sea horses
Carol K. Lindeen
Sharks
Carol K. Lindeen
Sharks
Carol K. Lindeen
Questions about the Pebble Plus; Under the Sea (Capstone) series
- What reading level is the Pebble Plus; Under the Sea (Capstone) series?
- The Pebble Plus; Under the Sea (Capstone) series by Carol K. Lindeen is at a Grades 1.4–2.3 reading level (average Grade 1.8). Intended for Lower Grades (Ages 5–8). There are 6 books in the series.
- What order should I read the Pebble Plus; Under the Sea (Capstone) books?
- The reading-order table above lists all 6 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; Under the Sea (Capstone) series appropriate for?
- The Pebble Plus; Under the Sea (Capstone) series is recommended for Lower Grades (Ages 5–8). The average content intensity is 1.5/5. 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.