The Werewolf Principle

The Werewolf Principle

by Clifford D. Simak

4.2 (755)

4.2 stars from 755 reviews. Top 92% of Literary Fiction books we track.

213 pages~3.6 hr readPublished by Science Fiction Book ClubPublished 1967-01-01

$9.99At peak price

Last checked: Jun 1, 2026

Price history: $1.99 $9.99

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Fans of these authors will like this...

  • Philip K. Dick
  • Ursula K. Le Guin
  • Ray Bradbury

Fans of these books will like this...

  • Altered Carbon
  • The Three-Body Problem
  • Permutation City

Perfect for you if...

  • You enjoy classic sci-fi that grapples with identity and consciousness rather than just action and spectacle.
  • You're interested in genetic engineering and its philosophical consequences before those themes became mainstream.
  • You appreciate tight, lean storytelling that trusts readers to follow complex ideas without heavy exposition.

Maybe not for you if...

  • You prefer fast-paced plots with clear protagonists in control of their own decisions and bodies.
  • You want modern prose and contemporary worldbuilding rather than vintage 1970s science fiction sensibilities.
  • You're looking for optimistic futures where technology solves humanity's problems without raising difficult questions.

About this book

Andrew Blake, a two-hundred-year-old man, is discovered hibernating in a space capsule orbiting a distant star. When transported back to Earth, he awakens to an unrecognizable world of flying cars and sentient floating houses, with no memory of his past. Blake did not return alone. He was genetically altered as part of a radical experiment abandoned over a century earlier to adapt to extreme alien environments. He now senses two other presences inhabiting his mind and body: a biological computer of remarkable power and a creature resembling a large wolf. Blake is not in control of his own mind. With his sanity at risk, Blake must pursue his past, the truth, and his destiny—which may also determine the fate of humankind. The novel explores genetic manipulation and examines what it means to be human.

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Price History

Kindle price over time. Green zones = periods when the book was free.

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Free$5.00$9.99Mar '21Mar '23May '25Jun '26
$1.99$9.99

Price has dropped 41 times over the last 5 years. Goes on sale roughly every 46 days. Typically stays discounted for 13 days.

Sales Rank

Amazon sales rank: lower number = better selling book. #1 is the bestseller.

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#453#348,046#695,638Jul '18Apr '22Oct '23May '26

Currently around #33K in the Kindle store — a steady mid-list seller. Sales have softened 60% recently.

Rating & Reviews

Purple line = star rating over time. Blue area = total review count growth.

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3.5★4.3★5.0★May '23Nov '23Apr '24Apr '26RatingReviews

Currently 4.2★ from 755 reviews

Gaining approximately 4 new reviews per month. Rating has remained stable at 4.2 over the tracking period.

Sale Prediction

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Free$5.00$9.99Mar '21Mar '23May '25Jun '26PredictedJun '26

Actual Predicted

This book goes on sale roughly every 46 days. Next drop estimated in about 3 weeks. Typical discount: 80% off.

Prices shown in USD from Amazon US. We continuously pull new data to improve tracking. If dates look old, it usually means there has been no significant change since the last data point.

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Clifford D. Simak

1 book on Vagrant Press

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