When late returning home from a trip to the market for milk, a father explains to his children why he was delayed. A simple setup for an inventive (and hilarious) science fiction adventure story, told as only Neil Gaiman can. Or, possibly, as Douglas Adams would have, because Gaiman seems to be channeling his spirit. The adventures take the father through familiar time-travelling tropes, but the fun is in how Gaiman ties it all together with a neat bow at the end. I especially like his various descriptions for gelatinous aliens. The illustrations are by Skottie Young, and are as funny as the text.