"Angkor is a region in Cambodia filled with the ruins of magnificent temples. Countless people visit Angkor every year to walk through its ancient corridors or admire its beautiful carvings. However, few people notice the odd M's carved into the stone around the site. Could they be an ancient Cambodian symbol? Or is it the mark of the mysterious and feared Madrigals? Their interest in Angkor is significant. The ruins symbolize the fact that even the greatest societies--and the most powerful families--can fall."