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A time gate... A team of teen scientists... A desperate fight to survive....In book 4's adventure, The Miocene epoch places them nearer to home, but can they make it back without a lost team member's knowledge? After Hannah abdicates as leader, relationships shift and new problems arise. Ancient canids hunting in a pack bring down another human. Who will survive this epoch, and who will fall?

239 pages, Kindle Edition

Published December 9, 2016

54 people are currently reading
12 people want to read

About the author

Lou Cadle

32 books125 followers
Lou Cadle grew up in Tornado Alley near the New Madrid fault, was in San Francisco's 1989 earthquake, watched minor eruptions of Mt. St. Helens from close up, and hiked several times over Kilauea's active lava flows. Cadle currently lives in haboob country.

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5 stars
59 (48%)
4 stars
45 (36%)
3 stars
16 (13%)
2 stars
2 (1%)
1 star
0 (0%)
Displaying 1 - 10 of 10 reviews
Profile Image for Mary Ann.
2,746 reviews11 followers
May 25, 2017
Was mad at myself when I didn't have the next one already down loaded! A character reappears after the group dynamics takes a hit and another characters gets injured. Makes me wonder how previous characters haven't developed major infections from their mishaps! Surviving different challenges in every time period takes its toll on all of the members. Can't wait to see how this adventure concludes itself!
718 reviews6 followers
February 16, 2020
Ok story

Good words in a row. Put boys and girls together ,without every minute, swelled breasts and bellies are gonna happen. It's very unfair, a few minutes for the guy and nine months, with possible death for her.
Profile Image for Thistle.
1,106 reviews20 followers
May 8, 2024
Reread in 2024:

Quick synopsis : Two adults and nine teenagers travel through different prehistoric time periods.

Brief opinion : I really enjoyed this series a lot. It was a lot of fun to read. [Originally read in 2017. Happily I didn't remember anything at all other than one plot twist, it was like reading it again for the first time.]

Plot : Through the final three books, the group ended up in various times. There were encounters with giant predators, needing to build shelter each time they time-jumped (about once per month), needing to find food, hunt, gather, make fire, all that.

Writing/editing : For a self-published book series, all five books written in a year, it was surprisingly good. Each book had more editing/grammar issues than the one before, but it never got bad.

What I Liked/What I Didn’t Like : I liked most of the books. In the later books there were flashbacks I skimmed, and in the earlier books some of the teenage Drama was a lot, but all in all these five books were an enjoyable read.

However, each book was really short. Like 2-3 hour reading time (YA books generally take me about 4 hours, adult books 8+). This series felt more like one or maybe two books, not five.

Rating: 1-Hated / 2-Disliked / 3-Okay / 4-Liked / 5-Loved : I should have at least decided the star rating before going on to the next book, but I didn't even pause between books.

Hell Pig: ⭐️⭐️⭐️⭐️ / 4 stars, liked
Killer Pack: ⭐️⭐️⭐️⭐️ / 4 stars, liked
Mammoth: ⭐️⭐️⭐️⭐️ / 4 stars, liked

Series overall: ⭐️⭐️⭐️⭐️ ½ / 4 and a half stars.


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Original review:

In book one, a park ranger (Hannah) lead a class of a dozen advance science students, their teacher, and another fossil expert into a canyon on a fossil hunt, and by chance they stumbled onto a rip in time that sent them into the distant past, into prehistoric times. Every month that rip opens again, which means that through the series, they also moved through time.

As I said in my review of one of the earlier books, the author is an expert on survival situations, and that completely showed. All through the series, their struggle to survive was completely realistic and believable. With every jump, the group needed to quickly learn their new environment, how to hunt in it, find water, build a shelter, and just stay alive. In some of the times (like the final book), the environment was nearly harsh enough to kill them right off the bat. In other books, giant predators could kill them just as quickly.

I completely loved not just this whole series, but the author's writing in general. I started his next series, Grey, as soon as I finished this one last night.

It's only now that I'm writing this review that I realized two things:

* Because of how short these books were, I thought they were YA. Nope! They are seriously short though, maybe 2-3 hours of reading each. (YA books usually take me about 4 hours, adult books 6-8.)
* These books were self-published! WOW. Not just were they all very well written, the editing in them was outstanding. I found maybe four errors in the whole series, which is at least as good as traditionally published books. This is especially impressive when you know that he wrote and published all five of these books in a single year.
Profile Image for Cynthia Terrones .
193 reviews10 followers
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February 18, 2017
LOVING DAWN OF MAMMALS

This series just keeps on rockin'. The group still being lost in the past has more trials headed their way and none of them are easy. I so love this series and anything to do with time travel, I'm there, ready to read and recommend. Lou Cadle has done a super job and I for one believe this is one series that everyone who starts with the first book, will want to follow it thru to the end. This book and series definitely deserves 5 stars and I'm super happy to give it. Highly recommended and now I'm on to Book 5.
425 reviews3 followers
February 12, 2017
Book Four

Another jump to another time. On the the last book. Well, Dixie shows a human side after all. But with a twist and what's up with Ted? This is priceless people! Got to keep reading....
543 reviews3 followers
December 17, 2016
For all 4 books of the series

Great look into how a group of teens, with two adults as well, survive different prehistoric eras on earth. Wonderful use of animals never seen by modern humans, plants that no longer exist or have evolved over the eons. I was a bit miffed at the ending, as this was touted as a 4 book series. So thankful I read the Afterwards! Can't wait for the fifth installment! This would be a great series for modern teens to read. I would bet they would all see at the very least a bit of them in the characters.
Profile Image for Jeanne Brandon.
11 reviews
January 23, 2017
Dawn of Mammals

Lou, I am really enjoying this series of books! Your characters are all likable and interesting and the premise is fascinating! I am so glad the last one is coming soon, I held off reading until I thought they were all done but not too long to wait, I shouldn't have binge read! Thank you for your talent!
23 reviews
December 16, 2016
Good series

I've been enjoying this series and will be sorry to see it end. I've really gotten in to the characters. While I don't want to see it end, I can't wait to see what happens.
Profile Image for Cassandra Stryffe.
88 reviews6 followers
December 9, 2016
Was totally worth the wait.

But waiting for book 5 might just kill me! Lou, please write faster. You don't need sleep or food..or a personal life....really!
Profile Image for Jo.
514 reviews10 followers
April 6, 2017
In this one, the prehistoric predator the group has to watch out for is a vicious jackal/wild dog type animal. The group dynamics are fascinating, as one or two turn out not to be as decent as we thought. They not only are trying to refine their jumps to get back to their own time, but the question arises: do they still want to?
Displaying 1 - 10 of 10 reviews

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