Books in the Breaking the Veil series

Dodging a future she wasn't sure she wanted in the first place, Flora MacDonald spins a new story for herself as a shopkeeper in a small Southern town, complete with a budding romance. When her lover Owen Drummond disappears, she discovers he is supposedly dead. Then a mysterious woman presents her with a unique opportunity. With nothing to lose but her future, Flora crosses the veil into the Otherworld, armed with only a fleeting knowledge of the Welsh Mabinogion texts, a paltry collection of artifacts, and a trio of unlikely guides to save the man who doesn't remember her. Her goal becomes survival for them both. But when gods are involved, Flora discovers saving the man she loves might not be her mission after all.