Instruct: Classify a review as either positive or negative.
Query: Great fun from Steve Alten

Steve Alten writes good books with original ideas which are full of action, thrills and are simply enjoyable to read. This is another one of those: it involes an ancient enigma, secretly written in the Mayan calendar which predicts the end of the world unless it can be solved and somehow prevented. The main characters: psychologist Dominique Vazquez and a high-IQ son of a former archeologist Mick Gabriel are a great team and together they search for answers to solve this ancient riddle. Pure fun, mystery, prophecies and action.