Geek Love by Katherine Dunn

Geek Love is the story of the Binewskis, a carny family whose mater- and paterfamilias set out ― with the help of amphetamine, arsenic, and radioisotopes ― to breed their own exhibit of human oddities. There's Arturo the Aquaboy, who has flippers for limbs and a megalomaniac ambition worthy of Genghis Khan . . . Iphy and Elly, the lissome Siamese twins . . . albino hunchback Oly, and the outwardly normal Chick, whose mysterious gifts make him the family's most precious ― and dangerous ― asset.As the Binewskis take their act across the backwaters of the U.S., inspiring fanatical devotion and murderous revulsion; as its members conduct their own Machiavellian version of sibling rivalry, Geek Love throws its sulfurous light on our notions of the freakish and the normal, the beautiful and the ugly, the holy and the obscene. Family values will never be the same.