https://www.penguinrandomhouse.com/books/195617/in-free-fall-by-juli-zeh/9780307389855/
In Free Fall by Juli Zeh: 9780307389855 | PenguinRandomHouse.com: Books
Oskar and Sebastian, both brilliant physicists, have been close friends ever since they first met at university. But now their relationship is strained...
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