I'm not sure specifically as I haven't read it. It could be about a special time (the happy hour) in a particular setting like a bar or a social gathering and the events, relationships, and stories that unfold during that time.
The title 'Happy Hour a Novel' gives very little away. However, if we think about the general idea of happy hour, it's often a time associated with unwinding. So perhaps the novel delves into the lives of the characters as they take a break from their daily routines during happy hour. It could explore themes like friendship, as people might meet up during this time, or it could look at how individuals cope with stress and find moments of joy in the midst of their busy lives. The characters might have secrets or dreams that are revealed or explored during these happy hour moments.
Since I don't have detailed knowledge of this novel, it might be centered around the concept of 'happy hour'. Maybe it shows how different characters interact, fall in love, or have conflicts during this time. It could also explore the significance of this time of day in their lives, whether it's a time for relaxation, self - discovery, or something else.