Once in a Black Moon — D. Lieber

Chicago journalist Erin Nichols isn't about to give up when she's fired for writing an exposé. But when a combination of murder, magic, and celestial events transports her through time and space to 1900 western Canada, city hall corruption becomes the least of her worries.

But the past isn't any safer. Awaking to learn she may be the victim of some unknown crime, Erin takes shelter with the local Mountie--the picture of upright Canadian fortitude. As tragedy stalks the nearby First Nation reserve, Erin learns from a Romanian mystic that magic is dying, and the fae are turning to their darker natures to survive.

While the reserved and sexy Mountie helps her navigate a time in which she doesn't belong, the mysterious and seductive conjurer helps her try to find a way home. As they alight feelings and desires Erin never knew she was capable of, she begins to wonder where she truly belongs.