Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Masterpiece

With a complete mastery of the English language, Prata delicately mixes his unique brand of Christian philosophy and breathtaking battles scenes. Peter Vischer and La Valette are carefully crafted characters that try to find their way through the siege on Malta in 1523 AD. Angels in Iron is one of the finest novels that I've read in quite some time. Cheers to you Mr. Prata!