devil horns grandmother Zion roofing is a 100 year old great-grandmother with an unusual story she has a six centimeter horn growing out of her forehead and seems to be quite pleased about it - she says that she has never had so many visitors and well-wishers in her life before and she wants to keep it that way her children seem very concerned but she insists that it doesn't hurt the horns are cutaneous horns growths made by keratin the same material that fingernails are made from she has noticed that a second one is developing and says that she looks forward to the time when they both match