Instruct: Classify the given Amazon review as either positive or negative.
Query: Engaging fantasy, wholly believable world

Douglas Niles is a gifted story teller. The land of three waters is a believable place, and you are instantly swept up as he weaves this tale.Rudgar Appenfell is an "Iceman" - he and his brothers live high in the mountains and make a living by taking noblemen up into the heights. A young prince of Galtigor comes, and Rudy is cast down a path from which he cannot turn away. Loss, adventure, sacrifice and friendship will follow him as he meets his destiny.If you enjoy fantasy, you'll want to read this book. Classic and yet unique, it's a great way to spend a rainy day.