Peterson left to attend to his errands. Holmes examined the stone for a while. “It’s quite spectacular, isn’t it? It’s what crimes are made of. Look at it in the light! See how it shines and sparkles. It’s a very valuable stone I must say. This stone is only about twenty years old but it already has a sinister history. There have been two murders, a suicide, and several robberies.” Holmes then put the stone away in a safe place for keeping.