The summer is over, with all of its drama and excitement and change. Jared and Cara are happily married. Issio and Sofi, next door, are getting ready for the arrival of their baby and enjoying the presence of their adopted Earthian daughter, Gina McIntosh. Her younger brother, Terry, is settled with the five D'ubians in the half-a-house on the corner, and studying in the music department of the Conservatory of the Performing Arts.
Jared's work team, trying to interpret the runes on the mysterious arches of OR2, have their computers and projectors and other tools in Ann's basement across the street. The security is better here. And they have the help of the representatives of the hidden fifth species, who may know a little more than they admit about the situation.
And two of the enemies are caged in harmless animal bodies, and two others in Earthian bodies have ended up in the hands of the justice system, and can expect a long incarceration in a mental institute. No one feels much sympathy for them.
But one of the enemies is not accounted for. The entity they still think of as the fly no longer has her insect body, but she is free, looking for another body in which to create mischief and chaos.
And they have to figure out a way to identify her and deal with her before she does any actual harm.