Please Don't Come Back From The Moon, by Dean Bakopoulos.
Set in a small town in America, where one day all the fathers get up and leave (supposedly for the moon) without explanation. It's sort of a coming of age story that focuses on this kid Mikey as he goes from being a teenager to an adult with a family and such. The book conveys a great sense of longing and uncertainty, of struggling for identity and such.
Gryff recommends.