The black African crested rat, also known as the maned rat, is a long haired rodent native to Eastern Africa, they resemble a small porcupine. They are the world's only known mammal to utilize and store toxins from another species for defense. They will chew the bark off the poison arrow tree and then rub their long fur on the tree coating them with the tree's toxin, which in turn poisons predators when they try to bite them.
The Count of Monte Cristo is a historical novel by French author Alexandre Dumas based on memoirs published by archivist Jacques Peuchet in 1838 of incidents in France of a shoemaker, Pierre Picaud, who lived in Nîmes in 1807, who was engaged to a rich woman when three friends falsely accused him of being a spy for England. Picaud was placed under arrest and served as a servant in Fenestrelle Fort to a rich Italian cleric. When the cleric died, he left his fortune to Picaud, who then spent years plotting his revenge on the three men responsible for his subservience. One he stabbed, the next he poisoned and the third, who had married his fiancée, he lured his son into crime and his daughter into prostitution before eventually stabbing him. His revenge complete, he was then murdered by a compatriot of the three accusers.