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 This book was such a great read! I'm a huge fan of sci-fi like this but I never read enough of it. Romy was such an endearing and strong character. She has been on her own since the age of 11 and was able to not only take care of herself, but an entire spaceship! She was nothing short of a genius. She was also alone without any human contact for two years (as it takes two years for messages between the ship and NASA to transmit). She was an emotionally strong person but she was, as the title suggests, lonely. And her latching onto J the way she did made sense. 
 Her love for the show Loch and Ness was a nice add in and fit into the story well. It didn't feel shoehorned in at all or like the author was trying to appeal to a certain group of people. It was clearly an outlet for her, as there's not much she can do on the ship. 
 The author is really good at writing technology that doesn't seem too impossible. There was typical sci-fi elements, like people who are in a deep sleep and frozen, but the author made it work in the story. The author definitely knows about STEM and can write it into their stories easily. 
 The story definitely takes you by surprise at times, one second you think you know what's going on but then it goes in another direction. A really great read that keeps you gripped throughout.