This short novel triumphantly crosses the line between children', YA and adult literature, placing itself comfortably in the numerous yet selected company of my favourite books. A compelling reading with a powerful ending. I appreciated the treatment of the relationship between the two sisters, two well-rounded and believable characters whose conflict never flattens into tipical clichés of children's and YA literature. I cried my share, I marvelled at the sci-fi element, and I liked a lot the way physics' concepts are introduced, although sometimes I felt the author was stretching and over-simplifying science a bit in order to make the topic palatable to younger readers. I am no scientist myself, however, so I may be wrong. All in all it was a very pleasant read. Now I want to give try to the author's other books.
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Unexpected twist, but then I don't know what to expect in the first place. Although the first half was pretty boring and uninteresting, I love how the turn of events makes the story more dynamic afterwards. It undeniably makes me question reality or what I thought my reality.
Strongly recommended if you have a curious kid at home. Let them read and understand the universe a little bit more or better yet, read together and create a fun family time. ( )