So I asked him how many arrows he found in Egypt.Losing the arrow was probably such a shock for him that it forced him to forget.So, the only ones who know that there were originally five arrows are just me and you, who is listening to this.He didn't have any qualms about the arrows being only four in number.And he didn't even remember that there were five arrows.Your father revealed the existence of the arrows to Polpo after this incident.When he regained consciousness, he didn't remember what happened before he collapsed.And he answered "I found four arrows."You see, when your father goes through an exceptionally frightening experience, he loses his memory of it.