The Fall of the Republic
In a parallel timeline, 1990s America discovers the chronoplanes: parallel worlds at different points in history.
The hijacking of the Roman Empire, 100 AD, by 21st-century Christian fundamentalists, in the second of the Chronoplane Wars novels.
The Empire of Time
My first novel, published in 1978, but the last in the Chronoplane Wars trilogy.
"Write a space opera," my editor said. So I did, with some nanotech thrown in.
A companion novel to Icequake, set mostly in California.
A disaster thriller (Antarctic ice sheet surges into ocean), dated but still fun.
Originally published in 1982, and still the novel I'm most proud of.