Five years after the events of Date Night on Union Station, Kelly has settled into married life and her job as the EarthCent ambassador. The only fly in the ointment is that most of the aliens on Union Station refuse to talk to her. But a mysterious new game is sweeping the galaxy, changing the balance of power between species and bringing game-savvy humans front-and-center.
As the invitations to diplomatic functions pour in, Kelly finds herself struggling to understand exactly what’s going on, not to mention finding babysitters on short notice. Fortunately, diplomats and alcohol go together like, well, diplomats and alcohol, and Joe has started a micro-brewery business in Mac’s Bones. The only thing left that could go wrong is a visit from her mother.

The Stryx offer EarthCent help in reaching out to the wide-spread human communities, but as usual, it comes with a catch or two. Kelly see an opportunity to increase her book hoard, just as publishing on Union Station begins to take off and Donna’s daughters enter a friendly competition. But who will publish the most expensive book of all?

Kelly returns from sabbatical and finally has the opportunity to expand her embassy with a conference room, providing she can find a contractor willing to take the job. Dorothy finds that her impending motherhood is an advice-magnet to her alien friends, while the SBJ Fashions workplace gets strange as Baa enchants fashion accessories for LARPing to repay her debt to Jeeves. Samuel and Vivian discover that their educational choices don’t necessarily match with their aptitudes and abilities.

The first carnival to take place on Union Station since humanity joined the galactic community is coming, and the ambassadors of the different species are all entered in the election to become Carnival King or Queen. It’s not a job that Kelly wants, and fortunately for her, the humans get a late start at electioneering.

Kelly Frank is EarthCent’s top diplomat on Union Station, but her job description has always been a bit vague. The pay is horrible and she’s in hock up to her ears for her furniture, which is likely to end up in a corridor because she’s behind on rent for her room. Sometimes she has to wonder if the career she has put ahead of her personal life for fifteen years is worth it.
When Kelly receives a gift subscription to the dating service that’s rumored to be powered by the same benevolent artificial intelligence that runs the huge station, she decides to swallow her pride and give it a shot. But as her dates go from bad to worse, she can only hope that the supposedly omniscient AI is planning a happy ending.

A new species has jumped into the Sol system for a quick look, leading the Stryx to assign humans to the greeting mission. Dorothy and Kevin leave on a trading mission in his new ship, bringing the dog, and Samuel and Vivian start at the Open University.

On the other side of the galaxy, the Cayl Empire has decided to wind down operations and the Stryx are planning to pick up the pieces. Kelly is tapped to host an open house event on Union Station to tempt the aliens into joining up, but does anybody other than the Stryx actually want the merger to take place?

Two years after the events of Alien Night on Union Station, Kelly faces new challenges as the EarthCent Ambassador. The growing acceptance of humans by their alien neighbors plus a measure of her own personal fame (or infamy) is resulting in too much work for an embassy with only two full-time staffers.
Friends and family must wonder if the stress is finally getting to Kelly when she starts acting even more peculiar than usual. Just leave it to the Stryx to throw a monkey wrench in the works by offering her a vital new assignment that can’t be refused.

While Kelly struggles to come up with a research project to apply for sabbatical, the role-playing craze reaches Union Station, and the Open University offers a for-credit LARP. Dorothy finally finishes her wedding dress with a technical flourish, and Jeeves plots to recoup his costs.

Kelly has served as the ambassador on Union Station for over two decades, but humanity remains on probationary status. When the Stryx inform EarthCent that their membership status is under review, Kelly goes all out to prepare for the test of her lifetime.

The story picks up less than a year after the events of High Priest on Union Station, with Kelly coming to the conclusion that EarthCent needs an intelligence service. Of course, EarthCent has no institutional knowledge of what spies do, or how they work, so the new agency gets off to a slow start. Then Kelly and the Union Station crew come up with a brilliant idea.

The Wanderers have just moved on from Union Station, and the ambassador is ready to take her first vacation in fifteen years. Unfortunately, the rules on paid vacation for EarthCent employees have changed for the worse, retroactively. Libby suggests spending some time exploring the station as an alternative, and Kelly cautiously goes along with it. Back at the embassy, while the cat’s away, the mice will play.

Three years have passed, and the children are growing like weeds as Aisha grows into a new career. A mob of alien party animals has settled near Union Station like a plague, but nobody seems willing to see them off. They bring word of a new wave of helpful artificial intelligence, but perhaps there’s such a thing as too helpful?

Over half of Earth’s population has left the planet, mainly as contract workers for aliens, and the homeworld is losing relevance to the emigrants. The EarthCent president takes on the task of making sure that humanity isn’t permanently stuck in a rut of low-skilled labor. Can the ambassador put aside her new-found obsession with the Galactic Free Press crossword puzzle and help save the day?