I've reviewed Eddie Patin before, specifically books in his "Monster Hunting" series, and I think they are worth checking out. This book is no exception - rather, it is probably the best one yet.
Perhaps what set this book above the others, in my opinion, is that the main character finally addressed the problematic nihilism and irresponsibility of one of the side characters.
The vast majority of dialogue in these books occurs between two characters: the inexperienced leader and critical member, Jason Leaper; and the much more experience soldier and dimension-hopper, Riley Wyatt. These two characters seem to have a solid friendship based on mutual respect, by this point in the series.
However, at the end of book #2, I couldn't help but feel disturbed by the way these characters recklessly jumped away from disastrous events in other dimensions and irresponsibly affected the timeline in their own world. In fact, the series began with the utter destruction of an entire dimension and this catastrophic accident did nothing to change the behavior of Riley Wyatt, who continued doing what he does despite being recently responsible for billions of human deaths. His mantra of "don't think about it" just seems patently irresponsible, given the consequences of his actions.
Jason Leaper doesn't destroy an entire dimension, but due to some creative time travel, he ends up meeting a past version of himself and subsequently ruins that version's life, by allowing his neighbors to be gruesomely killed by a monster and attracting police attention to his alternate self. At the end of book #2, we have yet to see the consequences of this behavior.
This is where book #3 really shines and sets itself apart from the first few books. The first 20% of the book deals with the continued interaction and dialogue between Jason Leaper and himself, struggling to make sense of the real, human life consequences of their inter-dimensional activity. While Riley continues to insist that his actions are meaningless, and that everything is meaningless (other that his immediate, self-centered acquisition of money and magical items), the alternate Jason struggles with depression and alcoholism that ultimately ends in his death, and the main character is forced to come to terms with what is effectively his own suicide. This event leads to some real character development and moral growth, which will hopefully prevent the kind of irresponsible activity that casually destroys universes.
By the end of book #3, I found a significant new investment in the characters that had been lacking in the previous books, and this is definitely a motivation to continue reading the series. Check it out on Amazon by clicking the picture above.