Imagination takes a leading role in children’s fears and is, as we approach the three years (when imagination becomes richer and achieves a higher degree of development) which is boosted the emergence of fear of the dark, monsters, ghosts, thieves, among others. This is one of the most common fears among children, being transversal to various cultures and civilizations. Usually occurs between the third and sixth year of child’s life, and is usually overcome by the entrance to the school. Occurs focussing at bedtime, at which time the child feels “unprotected” when faced with the physical separation of parents as well as with the presence security that this offers.