But the next letter was the real thriller, or rather cold chiller. She knew very well what it meant. From the point of view of the writer it meant "business," a threat well calculated to work terror in her own heart and the heart of every other member of Flamingo Fire. It was a threat couched in direful words, warning her and her friends not to go to Hollyhill on their charity mission, as announced, and predicting serious injury if not death to some of them. It was signed with a skull and cross-bones.