Vacationers From Outer Space: 05/06/13
Vacationers From Outer Space by Edward Valfre is about an intergalactic road trip. It starts innocently enough with a regular family getting ready for a long and potentially boring road trip. The kids in the back decide to imagine that the earth is about to be invaded and only they know.
The book is illustrated with retro style photographs of kitchy diners and other 1950s Americana. This gives a sense of nostalgia that parents might pick up on as they read it to kids.
It would be a good book to read just before summer vacation starts or maybe on the first day of school to start up the traditional "what I did on summer vacation" discussion going.