50 and 51. The Dead and the Gone and This World We Live In by Susan Beth Pfeffer
These are 2nd and 3rd books in a series that began with Life As We Knew It, which I loved. In these books a meteor crashes into the moon, pushing it off course and causing various disasters on earth. You all should know by now that I love a good apocalypse. But, I did not love these last two books. In The Dead and the Gone we go through the same time period as the first book, but in New York City. I did like a view of the end of the world from a big city stand point, but the characters were not as engaging. Also, the first book was written in a diary format which really drew the reader in and the second book was in 3rd person. The third book, though, was the worst. The characters from the first two books are brought together in a kind of contrived way and end up having to deal with things NOT going back to normal. In the third, I thought the characters were not as well fleshed out and there were many events that did not fit in with how I understood the characters so far. I would recommend reading the first book and skipping the second two.