Time Travel Quartet Books in Order
Time Travel Quartet is a 3-book series by Caroline B. Cooney for ages 13+, at a grades 5–6 reading level, with mild to intense content (HootRated intensity 2–4 out of 5).
- Books
- 3
- By publication date
- Content intensity
- Mild to intense
- HootRated 2–4 out of 5 · avg 2.7
Time Travel Quartet Reading Order
Series numbers aren't available for most Time Travel Quartet books, so they're listed by publication date (oldest first).
| # | Title | Reading Level | Ages | Content |
|---|---|---|---|---|
| 1 | Both sides of time 1995 | Level 5-6 | 13+ | Mild |
| 2 | Out of time Volume One 1996 | Level 5-6 | 13+ | Intense |
| 3 | For all time Prisoner of Time and for All Time 2001 | Level 5-6 | 13+ | Mild |
Content Intensity Across the Series
Gradual EscalationContent gradually intensifies from Mild to Intense.
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. Time Travel Quartet (3 books by Caroline B. Cooney) lands at a grades 5–6 reading level, with average content intensity 2.7/5. Content intensity edges up across the run; the last few books carry heavier themes than the first.
The reading-order table above lists every book with per-volume reading level, age and intensity ratings 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.
All Time Travel Quartet Books
Both sides of time
Caroline B. Cooney
Both sides of time
Caroline B. Cooney
Out of time
Caroline B. Cooney
Out of time
Caroline B. Cooney
For all time
Caroline B. Cooney
For all time
Caroline B. Cooney
Series Like Time Travel Quartet: What to Read Next
Similar reading level, content intensity and themes.
- Janie by Caroline B. Cooney 5 books · Grades 4–5 · moderate content
- Vampire's Promise by Caroline B. Cooney 3 books · Grades 4–5 · moderate content
- Once Upon a Time (Simon) by Debbie Viguie 3 books · Grades 5–6 · mild to moderate content
- Hollow Kingdom by Clare B. Dunkle 3 books · Grades 5–6 · mild to moderate content
- Caroline Years; Little House by Maria D. Wilkes 5 books · Grade 5 · gentle to moderate content
- Wars in U.S. History (Smartbook/Lightbox) by Thomas K. Adamson 4 books · Grades 5–6 · mild to moderate content
Questions about the Time Travel Quartet series
- What reading level is the Time Travel Quartet series?
- Time Travel Quartet books are at a grades 5–6 reading level (average grade level 5.4), and HootRated recommends the series for ages 13+. There are 3 books in the series.
- What order should I read the Time Travel Quartet books?
- Series numbers aren't available for most Time Travel Quartet books, so HootRated lists them by publication date: Both sides of time (1995); Out of time (1996); For all time (2001).
- What age is the Time Travel Quartet series appropriate for?
- HootRated recommends Time Travel Quartet for ages 13+. Content is mild to intense (HootRated intensity 2–4 out of 5). Content intensity edges up across the run; the last few books carry heavier themes than the first.