"He did not drown then," Daniel said. "If you examine the corpse carefully you shall find some place where he nicked himself with his dagger, or let it brush against his skin." Daniel planted a hand to either side of the silver platter and gazed at the weapon. "This is an expert preparation, solved in some fine light oil, such as whale-oil. Smeared on the skin it would convey the nicotine into the capillaries and thence to the lungs in a few minutes’ time." He looked up at Johann. "When you smoke your pipe, you feel an initial rush of stimulation, followed by a calmness, a steadying of the nerves. This is but a trace, a shadow, of nicotine poisoning. If you were cut with this dagger, that relaxation of the nerves would advance to the point where you would simply forget to breathe, and drown in air...every time you smoke tobacco, you are prefiguring your own death."