Read an excerpt from Luna author Ian McDonald’s heartbreaking new time-travel romance

I’m a big fan of Ian McDonald’s science fiction novels. The Dervish House and Luna: New Moon are complicated, intelligent stories about how societies cope with advanced technologies. McDonald’s next (and final) novel in the Luna trilogy, Moon Rising, isn’t hitting bookstores until 2019, but we will have a new story from him to tide us over while we wait: Time Was.This book is a novella from Tor.com about Ben and Tom, two engineers who fall in love while working on a secr