Both of the parents must each have a recessive gene for the trait so it wouldn't show but their son got both of these traits. There is a 1 in 4 chance the another child will get this. I would recommend doing it naturally and just letting nature have it's way.
When Mount Vesuvius erupted cataclysmically in the summer of A.D. 79, the nearby Roman town of Pompeii was buried under several feet of ash and rock. The ruined city remained frozen in time until it was discovered by a surveying engineer in 1748
