An angel sent by God, not only frees Peter, but escorts safety. Yes God's messenger are real. They are sent by the Lord to do His will in our lives.
Acts 12:11 KJV And when Peter was come to himself, he said, Now I know of a surety, that the Lord hath sent his angel, and hath delivered me out of the hand of Herod, and from all the expectation of the people of the Jews.
