It should/could have been 5 stars but for the stupid ending of the book.
Most of Breathing Room is ESP at her best: engaging and self-aware H&h, (which I particularly prefer to those walking around blind to their feelings and only on the last page BOOM! we are in love!) believable story and evolving relationships with fun, wit and character.
But then comes the ending, the last 4-3 chapters - with witch craft, Lightning and Thunder and a heroine that runs amok. I can't think why ESP reverts to such a stupid, out of character (both for her and for her H&h) ending for which up to that moment were a reasonable, coherent, feet on the ground people. It was disappointing and left a foul taste in my mouth.