Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Phenomenal! Quantum physics, steamy sex and WHAT a story!

I've been reading Emma Holly's wonderful stories since her black lace days and I think this is her best book yet.Charity is recruited to be a 'guest' at reclusive physicist B. G. Grantham's estate by the sexy Eric for some experiments in the art of desire. Emma really outdid herself on this one! The story has wonderful characters, sexy scenes, fascinating science facts and a mystery to boot!This story is touching, funny, spiritual, smart and sexy as all get out!