most typical books pull the cliche where he is week goes to strongest. then goes to a new continent or something and is week again. then power up back to being strongest. this repeats for 1000's of chapters before the end. so far none of that here. A smooth and continual story.
True enough Irina can protect Amy if needed. I suspect you won't die in front of everyone Josh. Alex is wise enough not to start a war by having witness of you being murdered savagely.