Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great continuation of a great series!

I liked nathan in Guardian Angel, but after the Gift, i love him. And Sara! She is one of my favourite heroines, with her little ' accidents', that make nathan's crew persist in regarding her as a curse. she is extremely naive, and has touching faith in her husband with the idea that she would never be in danger cause he would always save her. definitely a keeper!