Jeremy Solter is a teenager growing up in the late 21st century. During
the school year, his family lives in Southern California - but during the
summer the whole family lives and works in the city of Polisso, on the
frontier of the Roman Empire. Not the Roman Empire that fell centuries
ago, but a Roman Empire that never fell.
For we now have the
technology to move between timelines, and to exploit the untapped
resources of those timelines that are hospitable to human life. So we
send traders and business people - but as whole-family groups, in order to
keep the secret of Crosstime Traffic to ourselves.
But when
Jeremy ducks back home for emergency medical treatment, the gateways
stop working. So do all the communication links. Jeremy and his sister
are on their own, Polisso is suddenly under siege, and there's only so
much you can do when cannonballs are crashing through your roof...