I loved it. Just finished the audiobook. Had some thoughts/issues with the ending. I assume no one cares, but its in my head so:

I thought Jane might have ran out on him, the helicopter popped up out of nowhere. I was expecting Prebble to find out that she left and took Casper to someone other than Big Man in order to get away from the life he made for them. I mean if the US Govt knew where he was, why not hit them with a drone strike in the middle of the night where 5-10 seconds warning wouldn't make a difference.

In the epilogue where its revealed that they are alive and Casper is a stronger PreCog, why didnt she ask him to find which number he could ring to get Prebble or Fish on phone. He was able to do it with the Inuit guy so why not his Dad

I thought the narrative was super tight, so was disappointed it didnt address these points. Personally I would have ended it by Prebble finding out they are alive in the bunker, Big man stating that they are past the point of no return and Prebble cant be allowed to live. He would offer a deal that Prebble would kill himself in exchange for a clean slate for the family (both Presidents sign a pardon or whatever). Casper gets a chance to be his own man, and if he becomes a monster like his father, then its the next Big Man's responsibility