I do have to admit I hesitated a long long time before finally buying this book for my kindle. Even the first few pages of "The knife of never letting go" felt weird because Ness' writing style is somewhat different than others. But it was definatley worth to keep going.
I really do not read books about any big wars but this trilogy changed that. The SciFi elements are there but the war topic clearly stands out. I was really surprised that I kept going.