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Publisher's Summary

Dylan O'Connor is a gifted young artist just trying to do the right thing in life when, in a nightmarish instant, he is attacked by a mysterious "doctor" and injected with a strange substance. He is told that he is now a carrier of something that will either kill him...or transform his life in the most remarkable way. Then he is told that he must flee before the doctor's enemies hunt him down for the secret circulating through his body.

Stunned, disbelieving, Dylan is turned loose to run for his life - and straight into an adventure that will turn the next 24 hours into an odyssey of terror, mystery, and wondrous discovery.

By the Light of the Moon is a novel of heart-stopping suspense and transcendent beauty, a tale of how evil can destroy us and love can redeem us. This is a masterwork of the imagination in which the surprises come one after another and the spell of sublime storytelling triumphs throughout.

©2002 Dean Koontz (P)2002 Random House Inc.

Critic Reviews

"Exciting and deeply moving." (Publishers Weekly) "Stephen Lang brings an amazing talent for characterization." (AudioFile)

What members say

Average Customer Ratings


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  • Overall
  • Scott
  • milford, MI, USA
  • 01-22-09


This book has many characteristics. It's humorous, dramatic, sci-fictional, exhilirating. This book is highly reccomended so put it in your cart today! Dylan O' Connor's brother is a very humorous, traumatic, and very smart. I've read it twice already and it never get's old. By the way, this is my dads profile and I'm only 12, and I LOVED this book. If you're looking towards something more realistic, i reccomend Life Expectancy. My very favorite book ever.

16 of 16 people found this review helpful

  • Overall


My first Dean Koontz book was an accidental read many years ago and I couldn't believe that I had avoided him as an author for so long. I have to say that he is indeed a strange writer but his books strike a note with me that I find addictive. I would rank this book as definitely one of the best that I've read. It is sweet and endearing in the love of one brother for another and in the development of friends thru trust.

I've found that Koontz writes on the cutting edge of possibility and that is without a doubt interesting and a little scary in the possibilities. This book has a lot of those possibilities peppered in it.

I think I used to avoid his books because I thought they were horror books. I couldn't have been more wrong. I agree with another reviewer saying that if you only read one Koontz book, this one should be it.

12 of 12 people found this review helpful

  • Overall

Second best Koontz book

This book has some great characters and a great plot. The powers are unrealistic, despite their fairly realistic origin (speaking as a neuroscientist myself). Some great humor is included and the story is both interesting and, unlike some Koontz plots, non-depressing. It is one of my favorite books.

16 of 17 people found this review helpful

  • Overall

Perfect! A Perfect Story; Perfectly Narrated

By the Light of the Moon rates among the best of the nearly 300 books I've purchased since becoming an Audible Platinum subscriber in 2001. I can also state that , as the buyer of 80% of Audible's Dean Koontz books, this is by far Koontz's best (i.e. story & narration combined). My only criticism is that Koontz ends the book with a setup for an obvious series and in 9 years has not written one. Its 3 main characters (one of whom is autistic) were given uniquely-different powers as a result of a scientific experiment. At the very end of the book they meet the 4th person in the experiment, form a group called "The Camel Club," and set their mission going forward, to use their 4 gifts to save people whenever needed. There's a love-affair left unresolved and the 4th member's contribution unexplored. On top of it all, they're all be hunted by a group whose sole purpose is to eradicate them. Upon its conclusion I immediately went to the Audible site to buy and download the obvious sequels to this 2002 book and assumed the first would be named "The Camel Club." To my great disappointment, I found that, in the 9 years since its publication, Koontz has yet to write a sequel to By the Light of the Moon. Please Dean; bring back the Camel Club!

14 of 15 people found this review helpful

  • Overall
  • Todd S
  • Littleton, CO, US
  • 04-05-07

One of his best

If you have never listned to (or read) a Koontz book, start with this one! As if it were a "best of Koontz" it has everything he does so well- fun, whacky, yet very human characters; humor; suspense; and the unusual. I couldn't stop listening to it. I recommended it to my wife, and she couldn't stop listening. I love everything he does, and this is one of my absolute favorites. I "flipped" for it!

7 of 8 people found this review helpful

  • Overall

My First Audiobook

This is the first audio book I listened to and I'm glad I chose a Dean Kootz novel. I've never read a Koontz novel before, but now I'm hooked. A very imaginative story [and excellently read by Scott Brick] kept me listening for hours at a time. A mysterious solution injected into two, possibly three, unsuspecting victims by a seemingly benign doctor/scientist producing unusual and awe inspiring abilities. They are chased by men bent on killing them. As they run for their lives, the affects of the solution slowly present themselves, but their purpose and potential are not fully realized until the ending. I highly recommend this book; it is one of my favorite Dean Koontz novels.

6 of 7 people found this review helpful

  • Overall
  • Melinda
  • Charlotte, New Caledonia
  • 06-10-09

Angels on Earth

This was a really well written book, of course! Dean Koontz doesn't disappoint us here either... This was my first listen of this book but, I had read it in my 20s and loved it... Still a great book in my opinion.

2 of 2 people found this review helpful

  • Overall

Koontz still has it!

I had thought Koontz was beginning to get complacent with old familar characters; but "By the Light of the Moon" shows the characters and unique writing of Koontz is still there!

5 of 6 people found this review helpful

  • Overall
  • Amy
  • Westlake, TX, USA
  • 03-03-07

Good Book

A lot like you want from Koontz. Could use a little less humor, but overall a great premise. Winds up a little too quick.

5 of 6 people found this review helpful

  • Overall

By the Light of the Moon

Short and simple a real good listen well worth the price you wont be disapointed one of Mr.Koontz'es best works.
Jerry L.

11 of 14 people found this review helpful

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  • Overall
  • Shoshi
  • 12-02-07

ATale of Love and Courage in the Face of Evil

This extraordinary book is the most compelling I have ?read? for ages. It is poetic in its intensity and descriptive power, the use of alliteration and graphic imagery painting a canvas so rich that one feels intimately involved with the characters as they embark on their remarkable journey. On the surface this is a physical journey, fleeing unknown killers after having been injected with a mysterious substance by a desperate scientist without conscience. As they travel, the journey becomes one of self-discovery for each of them, and their altered condition begins to forge three disparate characters into a single force.

One of the most touching aspects of the story is the love and devotion of the older man for his autistic brother. Surely the author must have first-hand experience of dealing with someone in this labyrinthine state, with all its unpredictability, ritualistic behaviour and spontaneous richness of expression. This young man lifts the story from simple thriller to something other: a rich character study, and the heartwarming reality of the ultimate triumph of love and vulnerability in a dark world.

The throwing together of a man and a woman into the darkness of a dangerous and unpredictable night might have tempted a lesser author to introduce a romantic element. In my opinion, this would have reduced the impact of the book, and brought it down to the lowest common denominator of so much modern fiction. This author disproves the axiom that ?sex sells books? and resists such a temptation, merely hinting at the possibility of such a relationship in the future.

This novel is an allegory of the way in which one handles adversity, both internal and external. The rain falls alike on the just and the unjust, but it is how one deals with it that determines the outcome, both in one?s own life and in the life of others.

A remarkable book, penned by a writer has an obvious love for words, and a great command of the English language. Highly recommended!

8 of 9 people found this review helpful

  • Overall
  • Performance
  • Story
  • M
  • 05-18-15

So so

Well read but overall a mediocre story. Too many metaphores which distract from the overall story line. Koontz is a decent writer which he has shown with his Odd Thomas books but this is not one of his above average works. The always present religious undertones in his works is too overt in this one and seriously detracts from the story.