This is the last part of a trilogy of books, the first of which I read a few years ago. An asteroid strikes the moon and shifts it closer to Earth, causing immense ecological damage. Crops fail and ash is tossed into the air.The first part of the trilogy focused on a rural family, the second a family in New York, and the third brings the two together.It's a short book, probably only 20k words, and it didn't take me long to read. Parts of it felt rushed, and disjointed, and it felt like there were parts that were cut for no reason. Characters would suddenly fly into a rage with no reason, then be calm and reasonable a half page later.It wasn't until the last few chapters that I felt the characters were in any peril, and it wasn't until then that I felt moved by them or touched by them.Not a bad book, but it felt rushed and disjointed.