Someone is tampering with the water supply in the small Brazilian community, causing many to get sick, including Pil?r Silva's beloved grandmother. Pil?r leaves Chicago and travels to Salvador, Bahia at the start of Carnival season. She must trust Yoshi Tanaka's expertise as a scientist and his abilities to keep her safe. Yoshi, an award-winning Hydrologist, is supposed to stay in Rio for a conference, but he honors his brother's...