Polar Shift
NUMA Files #6
by Clive Cussler, Paul Kemprecos
Penguin UK 2012
Easy read — content targets 9th–12th grade
Reading level 6.7 (6th grade) but themes aimed at ages 14+
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Genre
Themes
- geoengineering and unintended consequences
- global conspiracies and shadow organizations
- environmental catastrophe and climate science
- technology as weapon
- ocean exploration and maritime danger
- teamwork and heroism
- race-against-time suspense
- ethics of scientific discovery
About this book
When a supposedly unsinkable freighter vanishes beneath a freak wave and killer whales inexplicably attack kayakers, Kurt Austin and the NUMA team uncover a conspiracy to trigger a polar shift—an engineered geophysical event capable of unleashing earthquakes, volcanic eruptions, and global chaos. Racing from ocean depths to remote labs, they battle a clandestine organization willing to rewrite the planet’s magnetic balance to topple world powers.
Setting: Contemporary, global and oceanic settings including the North Atlantic and Pacific, research vessels, covert facilities, and polar regions
Frequently Asked Questions
Is Polar Shift right for my child?
It depends — here's what to consider for Polar Shift. The reading level is AR 6.7, which is typical for 6th grade. The interest level is rated Upper Grades (9–12), meaning the themes and content are designed for ages 14+ (9th–12th grade). Themes include geoengineering and unintended consequences, global conspiracies and shadow organizations, environmental catastrophe and climate science.
How long does it take to read Polar Shift?
At a typical 6th grade reading pace, Polar Shift takes around 14h to finish. The book has 142,000 words. Slower or faster readers may vary significantly.
Does Polar Shift have an AR quiz?
Yes — Polar Shift has an AR quiz available, worth 20 points. Your child will need to take and pass the quiz through their school's Accelerated Reader program to earn credit. The quiz is typically 5–20 multiple choice questions about plot, characters, and setting.
What grade level is Polar Shift?
Polar Shift has an AR reading level of 6.7, which places it at a 6th grade reading difficulty. The interest level is rated Upper Grades (9–12) — this reflects the age-appropriateness of the content and themes, not just the reading difficulty. A strong younger reader may handle the words fine while the themes are aimed at an older audience, or vice versa.