Ever since the Save Betty project completed there has been degradation in the archives. The Luxon Institute for Superluminal Applications (LISA, still love that acronym) has determined that San Francisco in 1967 is a hot dim spot. They commission the Summer of Love project. Twenty-one year old Chiron Cat's Eye in Draco will t-port from 2467 to the summer of love where he is to find the Axis, a teenage girl from the Midwest will have important descendants, and protect her through the summer. This Susan Stein takes an alias, so Chiron has only probabilities to know if he finds the right girl.
In 1967 Susan receives a postcard from Nance, aka Penny Lane, who is in San Francisco. Her parents find the postcard, tear it up and burn it. She runs away that night and takes the name Starbright. She arrives hoping to see Penny Lane, but instead meets up with Stan the Man, manager of the Double Boogie band. She is invited to live with them in a house that is a constant party. She loves it, but a week later Stan hooks up with someone new. She meets Ruby again and Ruby takes her in. That first night Chiron saw an eye symbol by Ruby's shop, decided to hang around there and Ruby let him sleep on the couch. He's not sure that Starbright is the Axis, but there is a high probability.
Without being preachy major themes in the book include the environment, population control, women's rights and addiction. These were put into the setting of real life 1967. Street names referenced in the book exist and the Grateful Dead did have a concert there on August 22. I enjoyed the story without any nostalgic feeling, other than references to old Star Trek episodes and other SF works.
I really enjoyed the book. It was a little icky when Starbright was staying at the Double Boogie house, but after that it was excellent and that first chapter or two set up encounters throughout the rest of the book. I loved all three of the main characters, Starbright, Chiron and Ruby.