A young woman carrying her newborn son is hiding in a cave. Accompanied by her husband, there they wait until it is safe to go out again. The Holy Family took shelter on their flight to Egypt to escape the Slaughter of the Innocents ordered by Herod, the King of Judea at the time of Christ’s birth. There’s a plaque at the cave entrance where it’s written that when Mary was nursing the baby Jesus, a drop of milk “fell to the floor of the cave, turning the rock white and giving rise to the chalky stone.” This is the Milk Grotto.