Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Travel Back in Time to the 1880s

Si, an illustrator who's fed up with his job, is intrigued by a special project to place individuals back in time. This secret government project selected him for some undefined reason as a likely candidate to mentally make the trip through time. He's a very low-key character, narrating the events almost in a monotone. The story gains momentum as he achieves the transition back to the 1880s and the descriptions and illustrations of the city at that time are interesting. There's a mystery, and a romance to enhance the story too.