However, as much as I enjoyed reading about Zax’s adventures, it was his companions that were elevated to favourites – especially Minna, who as well as having an interesting biology due to the world she is from, just has a wonderful personality, is badass where needed and is an excellent character to have paired with Zax. Zax is a fantastic character, and you can’t help but become invested in his story and efforts, as he is our key to the different worlds, and I like how he interacts with each world in a different way. The other major strength of the Doors of Sleep is its characters, although I would say that comes through more later in the book once the main protagonist gains travelling companions.

But, the tapestry of worlds we were shown more than makes up for that (necessary – otherwise imagine how long this book would have been!) lack of depth, and the world-building was without a doubt my favourite aspect of this book. I can only have the deepest admiration of Pratt for being able to come up with the concepts for so many different worlds to create such a rich and varied multiverse, and even those places that were just glimpses or pit stops were well-imagined, if not as deep as I might normally want from world-building. Overall, I had some mixed feelings about this book, but one thing that I can say with certainty that I loved was the portal aspect and getting to see new worlds – and so many of them. But someone unwelcome is on his tail, and they are after something that Zax cannot spare – the blood running through his veins, the power to travel through worlds…įile Under: Science Fiction įor the amount of portal fantasy/sci-fi anime (isekai) that I watch, it is something that I rarely delve into in fiction, so the Doors of Sleep was an interesting venture into the unknown for me, and what an adventure it was. He can take people with him, if they’re unconscious in his arms when he falls asleep.

All he has to live by are his wits and the small aides he has picked up along the way – technological advantages from techno-utopias, sedatives to escape dangerous worlds, and stimulants to extend his stay in pleasant ones. Sometimes he wakes up in technological utopias, and other times in the bombed-out ruins of collapsed civilizations. He has no control over his destination and never knows what he will see when he opens his eyes. What would you do if you woke up and found yourself in a parallel universe under an alien sky? This is the question Zax Delatree must answer every time he closes his eyes.Įvery time Zax Delatree falls asleep, he travels to a new reality.

Doors of sleep tim pratt