"What about your pheromones?" Marcus asked thoughtfully, as he gathered the last of the blood transfusion supplies into a bag. "Were they partly Viola's as well?" "I don't know," I replied. "I can't tell." "We should try an experiment." "Make Duncan bark like a dog," Quinn suggested, jerking his head toward Duncan. "Or you could try something more difficult, like making Quinn shut up," Duncan returned. "Something simple would be best," Dad suggested drily. "And less likely to start a century-long feud."