When your first child has 4 hearts, you will awake in the morning and be informed by your spouse that your child is not at home! The child is missing from his/her room and the little one didn't tell anyone where he/she was going.
By nightfall you are both worried. Your spouse gets ready to head out to search outside the farm but your child comes running back up the path. Your child had taken the road and had accentally gotten lost.
This event takes all day. It begins when you get up in the morning and ends at 8:00 pm.