Draco’s eyes snapped to the edge of the water, to the small point of land that jutted out. There was nothing conspicuous about it, but a vague, fuzzy memory of hearing his father and Atticus Greengrass talking about the cabin that he’d had built amongst the trees and hidden under layers of protective charms for... things. His father had shooed him from the room when the conversation had turned to  what  exactly went on in the cabin. 