His octet was to be limited to the same weapons these humans were given. A very detailed video of the compound’s terrain was furnished. This he shared with his octet, because every Krall had an inborn ability to memorize such details for a mission. Repetition was unnecessary.

Koban is a very imaginative and action-packed military survival sci-fi. The story revolves around Captain Mirikami, who is transporting in a passenger spaceship scientists to a far colony, when he is attacked by an unknown and far more advanced alien species. Captain Mirikami and all on board is then isolated on a dangerous planet, Koban, where he has to prove to alien war race that humanity deserve to be treated as worthy opponents.

The author creates an entire universe with this book, with a new planet and a new alien species. The Krall are very advanced military, highly physical, destroyed or enslaving every other intelligent species they met so far. They use those wars to enhance their military abilities. Humans are considered weak and very low technologically speaking, but they are still put to trial. If they succeed, aliens plan to destroy humans gradually, rather then in a one big stroke, hence the struggle of Captain Mirikami.

Stephen Bennett creates a future where genetic warfare  almost killed the entire male population and changed ways of society. The men are subservient to women and the first part of the book is full with sexist situations. After the genetic war. humanity is not fighting internally nor meeting any other intelligent species in 300 years.

The narrative is captivating, some chapters are looking at events through the eyes of predators on Koban, some others through the Krall aliens. It makes the story a lot more interesting.The book has some fantastic ideas, but with others it went overboard. The sexism is interesting, but not adding to the story. The genetic enhancement done in days leave too many logical holes.

Nonetheless, it is a solid scifi survival book, imaginative, well paced, action-packed and entertaining.