On the second day after the boy's birth the mother notices it. The string-like fleshy protrusion, less than half an inch long, right at the tip of the boy's tailbone. It doesn't concern her much. After three girls, he is the first boy in the family. She and her newborn receive great care.
But the protrusion grows. It grows to an inch within six months.
On a market day, the parents take the boy to a homeopathic physician. The septuagenarian examines the protrusion thoroughly.