Household Gods

Household Gods is a time-travel novel written by Harry Turtledove and Tabitha Tarr.

CAUTION SPOILER

In this novel, a contemporary woman who is unhappy with her life makes a wish to live in an earlier time, when things were simpler and easier. She wakes up the next day living in the Roman Empire, and finds that life was not as easy during that age as she had imagined.