FIRST OF ALL THAT COVER IS BEAUTIFUL! *-* 
 I was happy with how this book turned out! It took me a tiny bit of time to get into the story, but I got drawn in soon enough, and couldn't put it down! 
 One thing that made it so appealing for me was this whole idea of time AND space travel. The constant scene change made the story progress constantly and evenly, and kept me anticipating the next area. 
 Passenger is a book that has an incredible rhythm. There is a constant beat and a beautiful melody, like a music piece. It was pretty to read, which doesn't make much sense unless you read it! 
 So Etta is a violin prodigy and somewhat surprisingly finds out that she can travel through time. She meets Nicholas and together they go through a kind of time-space scavenger hunt where they need to find an Astrolabe, a device that can create these sorts of portals to go through time. 
 The villain, Cyrus Ironwood, is easily hatable, even though he isn't always looming. He has one scene and that's it, but that one scene is enough to make me hate him. 
 Etta, the 'pirate', is so great! She is fiery and stubborn, but also sweet and confident. 
 Nicholas is also great, and one thing I appreciated with this book is that it did something that YA books don't usually do - it covered racism. Nicholas is of color, and they go through times where that is shunned upon. But besides that, he is incredibly brave and caring. 
 Their relationship is a tiny bit insta-lovey, but it evolved nicely anyway! 
 This book was funny at times! Just simple situations had humorous twists to them that I really appreciated! 
 Spoilers! 
 The ending messed me up! I thought they pulled a Tris! ;-; I'm glad they didn't though! Now I'm hoping Nicholas's character may develop more! 
 When Etta's mom throws a knife at her... wow I was not seeing their reunion be like that! 
 Even though Sophia practically dies, I still don't like her. 
 I feel like some things were a bit too easy for Etta to figure out. 
 End 
 One thing I really would have enjoyed is if the author would have given an explanation as to why these select families can time travel. Do they protect something? Or do they just have these powers? Did I miss this part in the book?! 
 Something that was pretty cool: the Astrolabe is something like a sexton, that measures time and location and position in space. We talked about astrolabes with my dad before it even came up in the book! You should look them up, they look so cool! 
 Also, Etta's family name is "Linden". We were in an area of Germany where Linden was written everywhere! 
 I gave this book a 4/5 starts :)