Well that was unfortunate. Picture a train chugging along on the tracks. As the story continues, it builds more and more momentum and then boom it crashes into a side of a mountain. Yep, that's how I feel about this book. 
 Weightless has a slow intro but once it picks up, between chapters 2 and 3, there is a good build until about 80%. Then it pretty much plummeted. The ending is beyond unbelievable. 
 I have to give the author credit for keeping us up in the air completely about what the traumatic event was going to be or who it would involve. There were a handful of guesses that I had as I read through but only one was partially in the right direction for our multi surprise ending. 
 Judging the first 75% of the book, I'd probably rate this book 4 stars. The last 25% just didn't do it for me. Overall, I give weightless 2.75 stars. 
 Audible: I added the whispersync audible narration to this Kindle book. I guess the biggest question to ask yourself before choosing this audible is, "do I like to be able to tell the difference between any of the characters, male or female?" If you don't mind that every single character sounds pretty much the same, go ahead and buy this audible. If you prefer to hear a difference between characters...even the male characters, give this audible a hard pass. The narrator has a nice voice and is pleasant to listen to. She just doesn't have any different voices. It was disappointing.