I admit I was not sure to appreciate this volume as much as the third, and although it was a wonderful surprise, even if the frame is always the same in the personality of the main characters, difficult to open, torture psychological, etc ... Those are different, first of all we finally come into contact with humans, who appear at times so low compared to shrink and changelings, but at least it changes a little, for a while at all case, the approach of these beings (and psy changeling) whose communalism is sometimes very enviable. In all cases Clay is a highly engaging and crude character, close to its annimal and aware of what he could become, but will persist in helping his beloved what will save the one like the other. The story is so dynamic it is not bored once. Enjoy reading