http://r7lscypevibgtindwowzyhqlajsi767kmmoq3nmo4otyy3ixqzzl4did.onion
Suppose, when some seemingly harmless substance A is injected, under the influence of enzymes it is broken down and substance B is formed, from which substance C appears and so on. At some point, substance N is born, a very toxic and incredibly dangerous substance that kills people.