Max Gladstone’s 2019 Empress of Forever is a standalone space opera.
Oligarch Vivian Liao is certain that Earth’s shadowy masters have finally tired of her. She fears that in short order she will be immured in some deep-state prison, slated for a brief but memorable terminal interview with a torturer. She attempts to avoid this dismal fate by launching a daring bid to conquer the world. She will hack and control the world’s computer infrastructure. Bwahaha!
Before she can do more than start her attack, she is dragged off to another realm by an enigmatic woman in futuristic garb.