A mysterious bequest sends Rosy and Jaz on a race against time to identify thirteen strange and wonderful objects - which turn out to tell the story of medicine, from the superstitions of ancient Egypt to the modern-day ethical dilemmas of genetic testing. Can unicorns cure leprosy? What secrets of the brain did Michelangelo conceal in his Sistine Chapel paintings? Did a zombie discover the cure for scurvy? Does homeopathy actually work? Why did an Australian scientist decide to drink dangerous bacteria? Is grapefruit evil? Did the bumps on Ned Kelly's head predict his fate? And how exactly did parachuting cats save a village from the plague? An exploration of the beauty and power of scientific reasoning, for thoughtful readers aged twelve years and up, from the award-winning author of The Montmaray Journals. Shortlisted for the 2018 Young People's History Prize (NSW Premier's History Awards) Print edition includes illustrations, author's note, bibliography and index. Teaching resources available.