During this examination, Daniel could not help but notice a rash on those parts of Isaac’s chest not covered by the nightshirt. He sat on the edge of the bed and unbuttoned the garment. Isaac’s eyes, then his head moved slightly as Daniel did so; the movement had caught his eye. He watched Daniel’s hands work their way down his heaving sternum, one button at a time, and when Daniel spread the nightshirt apart, Isaac’s eyes tracked his right hand. Daniel recognized it: Natural-Philosophic curiosity.