An ancestor of a Council member dies and Jennifer is ordered to investigate, to find out who is targeting one of their own and set the Slipstream back on track. Encountering technology more advanced than their own, she is severely injured and arrives at home barely clinging to life.
While she recovers, eighteen others are murdered, each connected to a member of Skylark, and making it clear that someone out there is trying to take them out, to erase them from history completely.
Heading back into the Slipstream, it soon becomes apparent that they are facing a foe from their future, with intimate knowledge of everything they've ever done, and with a relentless drive to see their insidious plans come to fruition.
Will she be able to save her coworkers, her own family, or will the forces from without as well as within, succeed and end Skylark's involvement in protecting the Slipstream forever?