Not since Firestorm have I been so immensed in Anna Pigeon life and the events that shape it. Winter study ( previous book) had some uncomfortable characters and events in it which affect Pigeon in her life to this day. She is on force leave by the National Park service to confort and deal with those events. She decides a vacation in Big Bend and acting like a tourist not a ranger is the best solution to dealing with these actions. Not long after the white water rafting trip begins trouble starts brewing. The younger college kids on the trip want to rescue a cow stranded high on a ledge, this is almost a success but things happen. Then as they travel over the most dangerous part of the rapids, more things happen. Then a body is found tangled in the river's strainer and more things happen. I don't want to reveal the things that happen because it would ruin the story. But these happenings link together and when you get to the end, you will feel justice, sorrow and even horror at these actions. One question remains will Anna return to be a park ranger or will she choose retirement?